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Posted to commits@commons.apache.org by lu...@apache.org on 2013/04/07 09:52:13 UTC
svn commit: r857590 [40/48] - in
/websites/production/commons/content/proper/commons-math/xref-test: ./
org/apache/commons/math3/ org/apache/commons/math3/analysis/
org/apache/commons/math3/analysis/differentiation/
org/apache/commons/math3/analysis/fu...
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svn:keywords = Author Date Id Revision
Modified: websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/random/RandomGeneratorAbstractTest.html
==============================================================================
--- websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/random/RandomGeneratorAbstractTest.html (original)
+++ websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/random/RandomGeneratorAbstractTest.html Sun Apr 7 07:52:05 2013
@@ -48,10 +48,10 @@
<a class="jxr_linenumber" name="38" href="#38">38</a> <em class="jxr_javadoccomment"> * makeGenerator() to provide a concrete generator to test. The generator</em>
<a class="jxr_linenumber" name="39" href="#39">39</a> <em class="jxr_javadoccomment"> * returned by makeGenerator should be seeded with a fixed seed.</em>
<a class="jxr_linenumber" name="40" href="#40">40</a> <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="41" href="#41">41</a> <em class="jxr_javadoccomment"> * @version $Id: RandomGeneratorAbstractTest.java 1364028 2012-07-21 00:42:49Z erans $</em>
+<a class="jxr_linenumber" name="41" href="#41">41</a> <em class="jxr_javadoccomment"> * @version $Id: RandomGeneratorAbstractTest.java 1454846 2013-03-10 13:02:04Z luc $</em>
<a class="jxr_linenumber" name="42" href="#42">42</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="43" href="#43">43</a>
-<a class="jxr_linenumber" name="44" href="#44">44</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../org/apache/commons/math3/random/RandomGeneratorAbstractTest.html">RandomGeneratorAbstractTest</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../../org/apache/commons/math3/random/RandomDataTest.html">RandomDataTest</a> {
+<a class="jxr_linenumber" name="44" href="#44">44</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../org/apache/commons/math3/random/RandomGeneratorAbstractTest.html">RandomGeneratorAbstractTest</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../../org/apache/commons/math3/random/RandomDataGeneratorTest.html">RandomDataGeneratorTest</a> {
<a class="jxr_linenumber" name="45" href="#45">45</a>
<a class="jxr_linenumber" name="46" href="#46">46</a> <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> RandomGenerator under test */</em>
<a class="jxr_linenumber" name="47" href="#47">47</a> <strong class="jxr_keyword">protected</strong> RandomGenerator generator;
@@ -67,7 +67,7 @@
<a class="jxr_linenumber" name="57" href="#57">57</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="58" href="#58">58</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/commons/math3/random/RandomGeneratorAbstractTest.html">RandomGeneratorAbstractTest</a>() {
<a class="jxr_linenumber" name="59" href="#59">59</a> generator = makeGenerator();
-<a class="jxr_linenumber" name="60" href="#60">60</a> randomData = <strong class="jxr_keyword">new</strong> RandomDataImpl(generator);
+<a class="jxr_linenumber" name="60" href="#60">60</a> randomData = <strong class="jxr_keyword">new</strong> RandomDataGenerator(generator);
<a class="jxr_linenumber" name="61" href="#61">61</a> }
<a class="jxr_linenumber" name="62" href="#62">62</a>
<a class="jxr_linenumber" name="63" href="#63">63</a> <em class="jxr_javadoccomment">/**</em>
@@ -171,272 +171,275 @@
<a class="jxr_linenumber" name="161" href="#161">161</a> }
<a class="jxr_linenumber" name="162" href="#162">162</a> }
<a class="jxr_linenumber" name="163" href="#163">163</a>
-<a class="jxr_linenumber" name="164" href="#164">164</a> @Override <em class="jxr_comment">// TODO is this supposed to be an override?</em>
-<a class="jxr_linenumber" name="165" href="#165">165</a> @Test(expected=MathIllegalArgumentException.<strong class="jxr_keyword">class</strong>)
-<a class="jxr_linenumber" name="166" href="#166">166</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testNextIntIAE() {
-<a class="jxr_linenumber" name="167" href="#167">167</a> <strong class="jxr_keyword">try</strong> {
-<a class="jxr_linenumber" name="168" href="#168">168</a> generator.nextInt(-1);
-<a class="jxr_linenumber" name="169" href="#169">169</a> Assert.fail(<span class="jxr_string">"MathIllegalArgumentException expected"</span>);
-<a class="jxr_linenumber" name="170" href="#170">170</a> } <strong class="jxr_keyword">catch</strong> (MathIllegalArgumentException ex) {
-<a class="jxr_linenumber" name="171" href="#171">171</a> <em class="jxr_comment">// ignored</em>
-<a class="jxr_linenumber" name="172" href="#172">172</a> }
-<a class="jxr_linenumber" name="173" href="#173">173</a> generator.nextInt(0);
-<a class="jxr_linenumber" name="174" href="#174">174</a> }
-<a class="jxr_linenumber" name="175" href="#175">175</a>
-<a class="jxr_linenumber" name="176" href="#176">176</a> @Test
-<a class="jxr_linenumber" name="177" href="#177">177</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testNextLongDirect() {
-<a class="jxr_linenumber" name="178" href="#178">178</a> <strong class="jxr_keyword">long</strong> q1 = Long.MAX_VALUE/4;
-<a class="jxr_linenumber" name="179" href="#179">179</a> <strong class="jxr_keyword">long</strong> q2 = 2 * q1;
-<a class="jxr_linenumber" name="180" href="#180">180</a> <strong class="jxr_keyword">long</strong> q3 = 3 * q1;
-<a class="jxr_linenumber" name="181" href="#181">181</a>
-<a class="jxr_linenumber" name="182" href="#182">182</a> Frequency freq = <strong class="jxr_keyword">new</strong> Frequency();
-<a class="jxr_linenumber" name="183" href="#183">183</a> <strong class="jxr_keyword">long</strong> val = 0;
-<a class="jxr_linenumber" name="184" href="#184">184</a> <strong class="jxr_keyword">int</strong> value = 0;
-<a class="jxr_linenumber" name="185" href="#185">185</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i=0; i<smallSampleSize; i++) {
-<a class="jxr_linenumber" name="186" href="#186">186</a> val = generator.nextLong();
-<a class="jxr_linenumber" name="187" href="#187">187</a> val = val < 0 ? -val : val;
-<a class="jxr_linenumber" name="188" href="#188">188</a> <strong class="jxr_keyword">if</strong> (val < q1) {
-<a class="jxr_linenumber" name="189" href="#189">189</a> value = 0;
-<a class="jxr_linenumber" name="190" href="#190">190</a> } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (val < q2) {
-<a class="jxr_linenumber" name="191" href="#191">191</a> value = 1;
-<a class="jxr_linenumber" name="192" href="#192">192</a> } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (val < q3) {
-<a class="jxr_linenumber" name="193" href="#193">193</a> value = 2;
-<a class="jxr_linenumber" name="194" href="#194">194</a> } <strong class="jxr_keyword">else</strong> {
-<a class="jxr_linenumber" name="195" href="#195">195</a> value = 3;
-<a class="jxr_linenumber" name="196" href="#196">196</a> }
-<a class="jxr_linenumber" name="197" href="#197">197</a> freq.addValue(value);
-<a class="jxr_linenumber" name="198" href="#198">198</a> }
-<a class="jxr_linenumber" name="199" href="#199">199</a> <strong class="jxr_keyword">long</strong>[] observed = <strong class="jxr_keyword">new</strong> <strong class="jxr_keyword">long</strong>[4];
-<a class="jxr_linenumber" name="200" href="#200">200</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i=0; i<4; i++) {
-<a class="jxr_linenumber" name="201" href="#201">201</a> observed[i] = freq.getCount(i);
-<a class="jxr_linenumber" name="202" href="#202">202</a> }
-<a class="jxr_linenumber" name="203" href="#203">203</a>
-<a class="jxr_linenumber" name="204" href="#204">204</a> <em class="jxr_comment">/*<em class="jxr_comment"> Use ChiSquare dist with df = 4-1 = 3, alpha = .001</em></em>
-<a class="jxr_linenumber" name="205" href="#205">205</a> <em class="jxr_comment"> * Change to 11.34 for alpha = .01</em>
-<a class="jxr_linenumber" name="206" href="#206">206</a> <em class="jxr_comment"> */</em>
-<a class="jxr_linenumber" name="207" href="#207">207</a> Assert.assertTrue(<span class="jxr_string">"chi-square test -- will fail about 1 in 1000 times"</span>,
-<a class="jxr_linenumber" name="208" href="#208">208</a> testStatistic.chiSquare(expected,observed) < 16.27);
-<a class="jxr_linenumber" name="209" href="#209">209</a> }
-<a class="jxr_linenumber" name="210" href="#210">210</a>
-<a class="jxr_linenumber" name="211" href="#211">211</a> @Test
-<a class="jxr_linenumber" name="212" href="#212">212</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testNextBooleanDirect() {
-<a class="jxr_linenumber" name="213" href="#213">213</a> <strong class="jxr_keyword">long</strong> halfSampleSize = smallSampleSize / 2;
-<a class="jxr_linenumber" name="214" href="#214">214</a> <strong class="jxr_keyword">double</strong>[] expected = {halfSampleSize, halfSampleSize};
-<a class="jxr_linenumber" name="215" href="#215">215</a> <strong class="jxr_keyword">long</strong>[] observed = <strong class="jxr_keyword">new</strong> <strong class="jxr_keyword">long</strong>[2];
-<a class="jxr_linenumber" name="216" href="#216">216</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i=0; i<smallSampleSize; i++) {
-<a class="jxr_linenumber" name="217" href="#217">217</a> <strong class="jxr_keyword">if</strong> (generator.nextBoolean()) {
-<a class="jxr_linenumber" name="218" href="#218">218</a> observed[0]++;
-<a class="jxr_linenumber" name="219" href="#219">219</a> } <strong class="jxr_keyword">else</strong> {
-<a class="jxr_linenumber" name="220" href="#220">220</a> observed[1]++;
-<a class="jxr_linenumber" name="221" href="#221">221</a> }
-<a class="jxr_linenumber" name="222" href="#222">222</a> }
-<a class="jxr_linenumber" name="223" href="#223">223</a> <em class="jxr_comment">/*<em class="jxr_comment"> Use ChiSquare dist with df = 2-1 = 1, alpha = .001</em></em>
-<a class="jxr_linenumber" name="224" href="#224">224</a> <em class="jxr_comment"> * Change to 6.635 for alpha = .01</em>
-<a class="jxr_linenumber" name="225" href="#225">225</a> <em class="jxr_comment"> */</em>
-<a class="jxr_linenumber" name="226" href="#226">226</a> Assert.assertTrue(<span class="jxr_string">"chi-square test -- will fail about 1 in 1000 times"</span>,
-<a class="jxr_linenumber" name="227" href="#227">227</a> testStatistic.chiSquare(expected,observed) < 10.828);
-<a class="jxr_linenumber" name="228" href="#228">228</a> }
-<a class="jxr_linenumber" name="229" href="#229">229</a>
-<a class="jxr_linenumber" name="230" href="#230">230</a> @Test
-<a class="jxr_linenumber" name="231" href="#231">231</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testNextFloatDirect() {
-<a class="jxr_linenumber" name="232" href="#232">232</a> Frequency freq = <strong class="jxr_keyword">new</strong> Frequency();
-<a class="jxr_linenumber" name="233" href="#233">233</a> <strong class="jxr_keyword">float</strong> val = 0;
-<a class="jxr_linenumber" name="234" href="#234">234</a> <strong class="jxr_keyword">int</strong> value = 0;
-<a class="jxr_linenumber" name="235" href="#235">235</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i=0; i<smallSampleSize; i++) {
-<a class="jxr_linenumber" name="236" href="#236">236</a> val = generator.nextFloat();
-<a class="jxr_linenumber" name="237" href="#237">237</a> <strong class="jxr_keyword">if</strong> (val < 0.25) {
-<a class="jxr_linenumber" name="238" href="#238">238</a> value = 0;
-<a class="jxr_linenumber" name="239" href="#239">239</a> } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (val < 0.5) {
-<a class="jxr_linenumber" name="240" href="#240">240</a> value = 1;
-<a class="jxr_linenumber" name="241" href="#241">241</a> } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (val < 0.75) {
-<a class="jxr_linenumber" name="242" href="#242">242</a> value = 2;
-<a class="jxr_linenumber" name="243" href="#243">243</a> } <strong class="jxr_keyword">else</strong> {
-<a class="jxr_linenumber" name="244" href="#244">244</a> value = 3;
-<a class="jxr_linenumber" name="245" href="#245">245</a> }
-<a class="jxr_linenumber" name="246" href="#246">246</a> freq.addValue(value);
-<a class="jxr_linenumber" name="247" href="#247">247</a> }
-<a class="jxr_linenumber" name="248" href="#248">248</a> <strong class="jxr_keyword">long</strong>[] observed = <strong class="jxr_keyword">new</strong> <strong class="jxr_keyword">long</strong>[4];
-<a class="jxr_linenumber" name="249" href="#249">249</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i=0; i<4; i++) {
-<a class="jxr_linenumber" name="250" href="#250">250</a> observed[i] = freq.getCount(i);
-<a class="jxr_linenumber" name="251" href="#251">251</a> }
-<a class="jxr_linenumber" name="252" href="#252">252</a>
-<a class="jxr_linenumber" name="253" href="#253">253</a> <em class="jxr_comment">/*<em class="jxr_comment"> Use ChiSquare dist with df = 4-1 = 3, alpha = .001</em></em>
-<a class="jxr_linenumber" name="254" href="#254">254</a> <em class="jxr_comment"> * Change to 11.34 for alpha = .01</em>
-<a class="jxr_linenumber" name="255" href="#255">255</a> <em class="jxr_comment"> */</em>
-<a class="jxr_linenumber" name="256" href="#256">256</a> Assert.assertTrue(<span class="jxr_string">"chi-square test -- will fail about 1 in 1000 times"</span>,
-<a class="jxr_linenumber" name="257" href="#257">257</a> testStatistic.chiSquare(expected,observed) < 16.27);
-<a class="jxr_linenumber" name="258" href="#258">258</a> }
-<a class="jxr_linenumber" name="259" href="#259">259</a>
-<a class="jxr_linenumber" name="260" href="#260">260</a> @Test
-<a class="jxr_linenumber" name="261" href="#261">261</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testDoubleDirect() {
-<a class="jxr_linenumber" name="262" href="#262">262</a> SummaryStatistics sample = <strong class="jxr_keyword">new</strong> SummaryStatistics();
-<a class="jxr_linenumber" name="263" href="#263">263</a> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> N = 10000;
-<a class="jxr_linenumber" name="264" href="#264">264</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < N; ++i) {
-<a class="jxr_linenumber" name="265" href="#265">265</a> sample.addValue(generator.nextDouble());
-<a class="jxr_linenumber" name="266" href="#266">266</a> }
-<a class="jxr_linenumber" name="267" href="#267">267</a> Assert.assertEquals(<span class="jxr_string">"Note: This test will fail randomly about 1 in 100 times."</span>,
-<a class="jxr_linenumber" name="268" href="#268">268</a> 0.5, sample.getMean(), FastMath.sqrt(N/12.0) * 2.576);
-<a class="jxr_linenumber" name="269" href="#269">269</a> Assert.assertEquals(1.0 / (2.0 * FastMath.sqrt(3.0)),
-<a class="jxr_linenumber" name="270" href="#270">270</a> sample.getStandardDeviation(), 0.01);
-<a class="jxr_linenumber" name="271" href="#271">271</a> }
-<a class="jxr_linenumber" name="272" href="#272">272</a>
-<a class="jxr_linenumber" name="273" href="#273">273</a> @Test
-<a class="jxr_linenumber" name="274" href="#274">274</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testFloatDirect() {
-<a class="jxr_linenumber" name="275" href="#275">275</a> SummaryStatistics sample = <strong class="jxr_keyword">new</strong> SummaryStatistics();
-<a class="jxr_linenumber" name="276" href="#276">276</a> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> N = 1000;
-<a class="jxr_linenumber" name="277" href="#277">277</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < N; ++i) {
-<a class="jxr_linenumber" name="278" href="#278">278</a> sample.addValue(generator.nextFloat());
-<a class="jxr_linenumber" name="279" href="#279">279</a> }
-<a class="jxr_linenumber" name="280" href="#280">280</a> Assert.assertEquals(<span class="jxr_string">"Note: This test will fail randomly about 1 in 100 times."</span>,
-<a class="jxr_linenumber" name="281" href="#281">281</a> 0.5, sample.getMean(), FastMath.sqrt(N/12.0) * 2.576);
-<a class="jxr_linenumber" name="282" href="#282">282</a> Assert.assertEquals(1.0 / (2.0 * FastMath.sqrt(3.0)),
-<a class="jxr_linenumber" name="283" href="#283">283</a> sample.getStandardDeviation(), 0.01);
-<a class="jxr_linenumber" name="284" href="#284">284</a> }
-<a class="jxr_linenumber" name="285" href="#285">285</a>
-<a class="jxr_linenumber" name="286" href="#286">286</a> @Test(expected=MathIllegalArgumentException.<strong class="jxr_keyword">class</strong>)
-<a class="jxr_linenumber" name="287" href="#287">287</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testNextIntNeg() {
-<a class="jxr_linenumber" name="288" href="#288">288</a> generator.nextInt(-1);
-<a class="jxr_linenumber" name="289" href="#289">289</a> }
-<a class="jxr_linenumber" name="290" href="#290">290</a>
-<a class="jxr_linenumber" name="291" href="#291">291</a> @Test
-<a class="jxr_linenumber" name="292" href="#292">292</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testNextInt2() {
-<a class="jxr_linenumber" name="293" href="#293">293</a> <strong class="jxr_keyword">int</strong> walk = 0;
-<a class="jxr_linenumber" name="294" href="#294">294</a> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> N = 10000;
-<a class="jxr_linenumber" name="295" href="#295">295</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> k = 0; k < N; ++k) {
-<a class="jxr_linenumber" name="296" href="#296">296</a> <strong class="jxr_keyword">if</strong> (generator.nextInt() >= 0) {
-<a class="jxr_linenumber" name="297" href="#297">297</a> ++walk;
-<a class="jxr_linenumber" name="298" href="#298">298</a> } <strong class="jxr_keyword">else</strong> {
-<a class="jxr_linenumber" name="299" href="#299">299</a> --walk;
-<a class="jxr_linenumber" name="300" href="#300">300</a> }
-<a class="jxr_linenumber" name="301" href="#301">301</a> }
-<a class="jxr_linenumber" name="302" href="#302">302</a> Assert.assertTrue(<span class="jxr_string">"Walked too far astray: "</span> + walk + <span class="jxr_string">"\nNote: This "</span> +
-<a class="jxr_linenumber" name="303" href="#303">303</a> <span class="jxr_string">"test will fail randomly about 1 in 100 times."</span>,
-<a class="jxr_linenumber" name="304" href="#304">304</a> FastMath.abs(walk) < FastMath.sqrt(N) * 2.576);
-<a class="jxr_linenumber" name="305" href="#305">305</a> }
-<a class="jxr_linenumber" name="306" href="#306">306</a>
-<a class="jxr_linenumber" name="307" href="#307">307</a> @Test
-<a class="jxr_linenumber" name="308" href="#308">308</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testNextLong2() {
-<a class="jxr_linenumber" name="309" href="#309">309</a> <strong class="jxr_keyword">int</strong> walk = 0;
-<a class="jxr_linenumber" name="310" href="#310">310</a> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> N = 1000;
-<a class="jxr_linenumber" name="311" href="#311">311</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> k = 0; k < N; ++k) {
-<a class="jxr_linenumber" name="312" href="#312">312</a> <strong class="jxr_keyword">if</strong> (generator.nextLong() >= 0) {
-<a class="jxr_linenumber" name="313" href="#313">313</a> ++walk;
-<a class="jxr_linenumber" name="314" href="#314">314</a> } <strong class="jxr_keyword">else</strong> {
-<a class="jxr_linenumber" name="315" href="#315">315</a> --walk;
-<a class="jxr_linenumber" name="316" href="#316">316</a> }
-<a class="jxr_linenumber" name="317" href="#317">317</a> }
-<a class="jxr_linenumber" name="318" href="#318">318</a> Assert.assertTrue(<span class="jxr_string">"Walked too far astray: "</span> + walk + <span class="jxr_string">"\nNote: This "</span> +
-<a class="jxr_linenumber" name="319" href="#319">319</a> <span class="jxr_string">"test will fail randomly about 1 in 100 times."</span>,
-<a class="jxr_linenumber" name="320" href="#320">320</a> FastMath.abs(walk) < FastMath.sqrt(N) * 2.576);
-<a class="jxr_linenumber" name="321" href="#321">321</a> }
-<a class="jxr_linenumber" name="322" href="#322">322</a>
-<a class="jxr_linenumber" name="323" href="#323">323</a> @Test
-<a class="jxr_linenumber" name="324" href="#324">324</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testNexBoolean2() {
-<a class="jxr_linenumber" name="325" href="#325">325</a> <strong class="jxr_keyword">int</strong> walk = 0;
-<a class="jxr_linenumber" name="326" href="#326">326</a> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> N = 10000;
-<a class="jxr_linenumber" name="327" href="#327">327</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> k = 0; k < N; ++k) {
-<a class="jxr_linenumber" name="328" href="#328">328</a> <strong class="jxr_keyword">if</strong> (generator.nextBoolean()) {
-<a class="jxr_linenumber" name="329" href="#329">329</a> ++walk;
-<a class="jxr_linenumber" name="330" href="#330">330</a> } <strong class="jxr_keyword">else</strong> {
-<a class="jxr_linenumber" name="331" href="#331">331</a> --walk;
-<a class="jxr_linenumber" name="332" href="#332">332</a> }
-<a class="jxr_linenumber" name="333" href="#333">333</a> }
-<a class="jxr_linenumber" name="334" href="#334">334</a> Assert.assertTrue(<span class="jxr_string">"Walked too far astray: "</span> + walk + <span class="jxr_string">"\nNote: This "</span> +
-<a class="jxr_linenumber" name="335" href="#335">335</a> <span class="jxr_string">"test will fail randomly about 1 in 100 times."</span>,
-<a class="jxr_linenumber" name="336" href="#336">336</a> FastMath.abs(walk) < FastMath.sqrt(N) * 2.576);
-<a class="jxr_linenumber" name="337" href="#337">337</a> }
-<a class="jxr_linenumber" name="338" href="#338">338</a>
-<a class="jxr_linenumber" name="339" href="#339">339</a> @Test
-<a class="jxr_linenumber" name="340" href="#340">340</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testNexBytes() {
-<a class="jxr_linenumber" name="341" href="#341">341</a> <strong class="jxr_keyword">long</strong>[] count = <strong class="jxr_keyword">new</strong> <strong class="jxr_keyword">long</strong>[256];
-<a class="jxr_linenumber" name="342" href="#342">342</a> byte[] bytes = <strong class="jxr_keyword">new</strong> byte[10];
-<a class="jxr_linenumber" name="343" href="#343">343</a> <strong class="jxr_keyword">double</strong>[] expected = <strong class="jxr_keyword">new</strong> <strong class="jxr_keyword">double</strong>[256];
-<a class="jxr_linenumber" name="344" href="#344">344</a> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> sampleSize = 100000;
-<a class="jxr_linenumber" name="345" href="#345">345</a>
-<a class="jxr_linenumber" name="346" href="#346">346</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < 256; i++) {
-<a class="jxr_linenumber" name="347" href="#347">347</a> expected[i] = (<strong class="jxr_keyword">double</strong>) sampleSize / 265f;
-<a class="jxr_linenumber" name="348" href="#348">348</a> }
-<a class="jxr_linenumber" name="349" href="#349">349</a>
-<a class="jxr_linenumber" name="350" href="#350">350</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> k = 0; k < sampleSize; ++k) {
-<a class="jxr_linenumber" name="351" href="#351">351</a> generator.nextBytes(bytes);
-<a class="jxr_linenumber" name="352" href="#352">352</a> <strong class="jxr_keyword">for</strong> (byte b : bytes) {
-<a class="jxr_linenumber" name="353" href="#353">353</a> ++count[b + 128];
-<a class="jxr_linenumber" name="354" href="#354">354</a> }
-<a class="jxr_linenumber" name="355" href="#355">355</a> }
-<a class="jxr_linenumber" name="356" href="#356">356</a>
-<a class="jxr_linenumber" name="357" href="#357">357</a> TestUtils.assertChiSquareAccept(expected, count, 0.001);
-<a class="jxr_linenumber" name="358" href="#358">358</a>
-<a class="jxr_linenumber" name="359" href="#359">359</a> }
-<a class="jxr_linenumber" name="360" href="#360">360</a>
-<a class="jxr_linenumber" name="361" href="#361">361</a> @Test
-<a class="jxr_linenumber" name="362" href="#362">362</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testSeeding() {
-<a class="jxr_linenumber" name="363" href="#363">363</a> <em class="jxr_comment">// makeGenerator initializes with fixed seed</em>
-<a class="jxr_linenumber" name="364" href="#364">364</a> RandomGenerator gen = makeGenerator();
-<a class="jxr_linenumber" name="365" href="#365">365</a> RandomGenerator gen1 = makeGenerator();
-<a class="jxr_linenumber" name="366" href="#366">366</a> checkSameSequence(gen, gen1);
-<a class="jxr_linenumber" name="367" href="#367">367</a> <em class="jxr_comment">// reseed, but recreate the second one</em>
-<a class="jxr_linenumber" name="368" href="#368">368</a> <em class="jxr_comment">// verifies MATH-723</em>
-<a class="jxr_linenumber" name="369" href="#369">369</a> gen.setSeed(100);
-<a class="jxr_linenumber" name="370" href="#370">370</a> gen1 = makeGenerator();
-<a class="jxr_linenumber" name="371" href="#371">371</a> gen1.setSeed(100);
-<a class="jxr_linenumber" name="372" href="#372">372</a> checkSameSequence(gen, gen1);
-<a class="jxr_linenumber" name="373" href="#373">373</a> }
-<a class="jxr_linenumber" name="374" href="#374">374</a>
-<a class="jxr_linenumber" name="375" href="#375">375</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> checkSameSequence(RandomGenerator gen1, RandomGenerator gen2) {
-<a class="jxr_linenumber" name="376" href="#376">376</a> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> len = 11; <em class="jxr_comment">// Needs to be an odd number to check MATH-723</em>
-<a class="jxr_linenumber" name="377" href="#377">377</a> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">double</strong>[][] values = <strong class="jxr_keyword">new</strong> <strong class="jxr_keyword">double</strong>[2][len];
-<a class="jxr_linenumber" name="378" href="#378">378</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < len; i++) {
-<a class="jxr_linenumber" name="379" href="#379">379</a> values[0][i] = gen1.nextDouble();
-<a class="jxr_linenumber" name="380" href="#380">380</a> }
+<a class="jxr_linenumber" name="164" href="#164">164</a> @Test
+<a class="jxr_linenumber" name="165" href="#165">165</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testNextIntIAE2() {
+<a class="jxr_linenumber" name="166" href="#166">166</a> <strong class="jxr_keyword">try</strong> {
+<a class="jxr_linenumber" name="167" href="#167">167</a> generator.nextInt(-1);
+<a class="jxr_linenumber" name="168" href="#168">168</a> Assert.fail(<span class="jxr_string">"MathIllegalArgumentException expected"</span>);
+<a class="jxr_linenumber" name="169" href="#169">169</a> } <strong class="jxr_keyword">catch</strong> (MathIllegalArgumentException ex) {
+<a class="jxr_linenumber" name="170" href="#170">170</a> <em class="jxr_comment">// ignored</em>
+<a class="jxr_linenumber" name="171" href="#171">171</a> }
+<a class="jxr_linenumber" name="172" href="#172">172</a> <strong class="jxr_keyword">try</strong> {
+<a class="jxr_linenumber" name="173" href="#173">173</a> generator.nextInt(0);
+<a class="jxr_linenumber" name="174" href="#174">174</a> } <strong class="jxr_keyword">catch</strong> (MathIllegalArgumentException ex) {
+<a class="jxr_linenumber" name="175" href="#175">175</a> <em class="jxr_comment">// ignored</em>
+<a class="jxr_linenumber" name="176" href="#176">176</a> }
+<a class="jxr_linenumber" name="177" href="#177">177</a> }
+<a class="jxr_linenumber" name="178" href="#178">178</a>
+<a class="jxr_linenumber" name="179" href="#179">179</a> @Test
+<a class="jxr_linenumber" name="180" href="#180">180</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testNextLongDirect() {
+<a class="jxr_linenumber" name="181" href="#181">181</a> <strong class="jxr_keyword">long</strong> q1 = Long.MAX_VALUE/4;
+<a class="jxr_linenumber" name="182" href="#182">182</a> <strong class="jxr_keyword">long</strong> q2 = 2 * q1;
+<a class="jxr_linenumber" name="183" href="#183">183</a> <strong class="jxr_keyword">long</strong> q3 = 3 * q1;
+<a class="jxr_linenumber" name="184" href="#184">184</a>
+<a class="jxr_linenumber" name="185" href="#185">185</a> Frequency freq = <strong class="jxr_keyword">new</strong> Frequency();
+<a class="jxr_linenumber" name="186" href="#186">186</a> <strong class="jxr_keyword">long</strong> val = 0;
+<a class="jxr_linenumber" name="187" href="#187">187</a> <strong class="jxr_keyword">int</strong> value = 0;
+<a class="jxr_linenumber" name="188" href="#188">188</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i=0; i<smallSampleSize; i++) {
+<a class="jxr_linenumber" name="189" href="#189">189</a> val = generator.nextLong();
+<a class="jxr_linenumber" name="190" href="#190">190</a> val = val < 0 ? -val : val;
+<a class="jxr_linenumber" name="191" href="#191">191</a> <strong class="jxr_keyword">if</strong> (val < q1) {
+<a class="jxr_linenumber" name="192" href="#192">192</a> value = 0;
+<a class="jxr_linenumber" name="193" href="#193">193</a> } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (val < q2) {
+<a class="jxr_linenumber" name="194" href="#194">194</a> value = 1;
+<a class="jxr_linenumber" name="195" href="#195">195</a> } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (val < q3) {
+<a class="jxr_linenumber" name="196" href="#196">196</a> value = 2;
+<a class="jxr_linenumber" name="197" href="#197">197</a> } <strong class="jxr_keyword">else</strong> {
+<a class="jxr_linenumber" name="198" href="#198">198</a> value = 3;
+<a class="jxr_linenumber" name="199" href="#199">199</a> }
+<a class="jxr_linenumber" name="200" href="#200">200</a> freq.addValue(value);
+<a class="jxr_linenumber" name="201" href="#201">201</a> }
+<a class="jxr_linenumber" name="202" href="#202">202</a> <strong class="jxr_keyword">long</strong>[] observed = <strong class="jxr_keyword">new</strong> <strong class="jxr_keyword">long</strong>[4];
+<a class="jxr_linenumber" name="203" href="#203">203</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i=0; i<4; i++) {
+<a class="jxr_linenumber" name="204" href="#204">204</a> observed[i] = freq.getCount(i);
+<a class="jxr_linenumber" name="205" href="#205">205</a> }
+<a class="jxr_linenumber" name="206" href="#206">206</a>
+<a class="jxr_linenumber" name="207" href="#207">207</a> <em class="jxr_comment">/*<em class="jxr_comment"> Use ChiSquare dist with df = 4-1 = 3, alpha = .001</em></em>
+<a class="jxr_linenumber" name="208" href="#208">208</a> <em class="jxr_comment"> * Change to 11.34 for alpha = .01</em>
+<a class="jxr_linenumber" name="209" href="#209">209</a> <em class="jxr_comment"> */</em>
+<a class="jxr_linenumber" name="210" href="#210">210</a> Assert.assertTrue(<span class="jxr_string">"chi-square test -- will fail about 1 in 1000 times"</span>,
+<a class="jxr_linenumber" name="211" href="#211">211</a> testStatistic.chiSquare(expected,observed) < 16.27);
+<a class="jxr_linenumber" name="212" href="#212">212</a> }
+<a class="jxr_linenumber" name="213" href="#213">213</a>
+<a class="jxr_linenumber" name="214" href="#214">214</a> @Test
+<a class="jxr_linenumber" name="215" href="#215">215</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testNextBooleanDirect() {
+<a class="jxr_linenumber" name="216" href="#216">216</a> <strong class="jxr_keyword">long</strong> halfSampleSize = smallSampleSize / 2;
+<a class="jxr_linenumber" name="217" href="#217">217</a> <strong class="jxr_keyword">double</strong>[] expected = {halfSampleSize, halfSampleSize};
+<a class="jxr_linenumber" name="218" href="#218">218</a> <strong class="jxr_keyword">long</strong>[] observed = <strong class="jxr_keyword">new</strong> <strong class="jxr_keyword">long</strong>[2];
+<a class="jxr_linenumber" name="219" href="#219">219</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i=0; i<smallSampleSize; i++) {
+<a class="jxr_linenumber" name="220" href="#220">220</a> <strong class="jxr_keyword">if</strong> (generator.nextBoolean()) {
+<a class="jxr_linenumber" name="221" href="#221">221</a> observed[0]++;
+<a class="jxr_linenumber" name="222" href="#222">222</a> } <strong class="jxr_keyword">else</strong> {
+<a class="jxr_linenumber" name="223" href="#223">223</a> observed[1]++;
+<a class="jxr_linenumber" name="224" href="#224">224</a> }
+<a class="jxr_linenumber" name="225" href="#225">225</a> }
+<a class="jxr_linenumber" name="226" href="#226">226</a> <em class="jxr_comment">/*<em class="jxr_comment"> Use ChiSquare dist with df = 2-1 = 1, alpha = .001</em></em>
+<a class="jxr_linenumber" name="227" href="#227">227</a> <em class="jxr_comment"> * Change to 6.635 for alpha = .01</em>
+<a class="jxr_linenumber" name="228" href="#228">228</a> <em class="jxr_comment"> */</em>
+<a class="jxr_linenumber" name="229" href="#229">229</a> Assert.assertTrue(<span class="jxr_string">"chi-square test -- will fail about 1 in 1000 times"</span>,
+<a class="jxr_linenumber" name="230" href="#230">230</a> testStatistic.chiSquare(expected,observed) < 10.828);
+<a class="jxr_linenumber" name="231" href="#231">231</a> }
+<a class="jxr_linenumber" name="232" href="#232">232</a>
+<a class="jxr_linenumber" name="233" href="#233">233</a> @Test
+<a class="jxr_linenumber" name="234" href="#234">234</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testNextFloatDirect() {
+<a class="jxr_linenumber" name="235" href="#235">235</a> Frequency freq = <strong class="jxr_keyword">new</strong> Frequency();
+<a class="jxr_linenumber" name="236" href="#236">236</a> <strong class="jxr_keyword">float</strong> val = 0;
+<a class="jxr_linenumber" name="237" href="#237">237</a> <strong class="jxr_keyword">int</strong> value = 0;
+<a class="jxr_linenumber" name="238" href="#238">238</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i=0; i<smallSampleSize; i++) {
+<a class="jxr_linenumber" name="239" href="#239">239</a> val = generator.nextFloat();
+<a class="jxr_linenumber" name="240" href="#240">240</a> <strong class="jxr_keyword">if</strong> (val < 0.25) {
+<a class="jxr_linenumber" name="241" href="#241">241</a> value = 0;
+<a class="jxr_linenumber" name="242" href="#242">242</a> } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (val < 0.5) {
+<a class="jxr_linenumber" name="243" href="#243">243</a> value = 1;
+<a class="jxr_linenumber" name="244" href="#244">244</a> } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (val < 0.75) {
+<a class="jxr_linenumber" name="245" href="#245">245</a> value = 2;
+<a class="jxr_linenumber" name="246" href="#246">246</a> } <strong class="jxr_keyword">else</strong> {
+<a class="jxr_linenumber" name="247" href="#247">247</a> value = 3;
+<a class="jxr_linenumber" name="248" href="#248">248</a> }
+<a class="jxr_linenumber" name="249" href="#249">249</a> freq.addValue(value);
+<a class="jxr_linenumber" name="250" href="#250">250</a> }
+<a class="jxr_linenumber" name="251" href="#251">251</a> <strong class="jxr_keyword">long</strong>[] observed = <strong class="jxr_keyword">new</strong> <strong class="jxr_keyword">long</strong>[4];
+<a class="jxr_linenumber" name="252" href="#252">252</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i=0; i<4; i++) {
+<a class="jxr_linenumber" name="253" href="#253">253</a> observed[i] = freq.getCount(i);
+<a class="jxr_linenumber" name="254" href="#254">254</a> }
+<a class="jxr_linenumber" name="255" href="#255">255</a>
+<a class="jxr_linenumber" name="256" href="#256">256</a> <em class="jxr_comment">/*<em class="jxr_comment"> Use ChiSquare dist with df = 4-1 = 3, alpha = .001</em></em>
+<a class="jxr_linenumber" name="257" href="#257">257</a> <em class="jxr_comment"> * Change to 11.34 for alpha = .01</em>
+<a class="jxr_linenumber" name="258" href="#258">258</a> <em class="jxr_comment"> */</em>
+<a class="jxr_linenumber" name="259" href="#259">259</a> Assert.assertTrue(<span class="jxr_string">"chi-square test -- will fail about 1 in 1000 times"</span>,
+<a class="jxr_linenumber" name="260" href="#260">260</a> testStatistic.chiSquare(expected,observed) < 16.27);
+<a class="jxr_linenumber" name="261" href="#261">261</a> }
+<a class="jxr_linenumber" name="262" href="#262">262</a>
+<a class="jxr_linenumber" name="263" href="#263">263</a> @Test
+<a class="jxr_linenumber" name="264" href="#264">264</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testDoubleDirect() {
+<a class="jxr_linenumber" name="265" href="#265">265</a> SummaryStatistics sample = <strong class="jxr_keyword">new</strong> SummaryStatistics();
+<a class="jxr_linenumber" name="266" href="#266">266</a> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> N = 10000;
+<a class="jxr_linenumber" name="267" href="#267">267</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < N; ++i) {
+<a class="jxr_linenumber" name="268" href="#268">268</a> sample.addValue(generator.nextDouble());
+<a class="jxr_linenumber" name="269" href="#269">269</a> }
+<a class="jxr_linenumber" name="270" href="#270">270</a> Assert.assertEquals(<span class="jxr_string">"Note: This test will fail randomly about 1 in 100 times."</span>,
+<a class="jxr_linenumber" name="271" href="#271">271</a> 0.5, sample.getMean(), FastMath.sqrt(N/12.0) * 2.576);
+<a class="jxr_linenumber" name="272" href="#272">272</a> Assert.assertEquals(1.0 / (2.0 * FastMath.sqrt(3.0)),
+<a class="jxr_linenumber" name="273" href="#273">273</a> sample.getStandardDeviation(), 0.01);
+<a class="jxr_linenumber" name="274" href="#274">274</a> }
+<a class="jxr_linenumber" name="275" href="#275">275</a>
+<a class="jxr_linenumber" name="276" href="#276">276</a> @Test
+<a class="jxr_linenumber" name="277" href="#277">277</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testFloatDirect() {
+<a class="jxr_linenumber" name="278" href="#278">278</a> SummaryStatistics sample = <strong class="jxr_keyword">new</strong> SummaryStatistics();
+<a class="jxr_linenumber" name="279" href="#279">279</a> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> N = 1000;
+<a class="jxr_linenumber" name="280" href="#280">280</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < N; ++i) {
+<a class="jxr_linenumber" name="281" href="#281">281</a> sample.addValue(generator.nextFloat());
+<a class="jxr_linenumber" name="282" href="#282">282</a> }
+<a class="jxr_linenumber" name="283" href="#283">283</a> Assert.assertEquals(<span class="jxr_string">"Note: This test will fail randomly about 1 in 100 times."</span>,
+<a class="jxr_linenumber" name="284" href="#284">284</a> 0.5, sample.getMean(), FastMath.sqrt(N/12.0) * 2.576);
+<a class="jxr_linenumber" name="285" href="#285">285</a> Assert.assertEquals(1.0 / (2.0 * FastMath.sqrt(3.0)),
+<a class="jxr_linenumber" name="286" href="#286">286</a> sample.getStandardDeviation(), 0.01);
+<a class="jxr_linenumber" name="287" href="#287">287</a> }
+<a class="jxr_linenumber" name="288" href="#288">288</a>
+<a class="jxr_linenumber" name="289" href="#289">289</a> @Test(expected=MathIllegalArgumentException.<strong class="jxr_keyword">class</strong>)
+<a class="jxr_linenumber" name="290" href="#290">290</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testNextIntNeg() {
+<a class="jxr_linenumber" name="291" href="#291">291</a> generator.nextInt(-1);
+<a class="jxr_linenumber" name="292" href="#292">292</a> }
+<a class="jxr_linenumber" name="293" href="#293">293</a>
+<a class="jxr_linenumber" name="294" href="#294">294</a> @Test
+<a class="jxr_linenumber" name="295" href="#295">295</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testNextInt2() {
+<a class="jxr_linenumber" name="296" href="#296">296</a> <strong class="jxr_keyword">int</strong> walk = 0;
+<a class="jxr_linenumber" name="297" href="#297">297</a> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> N = 10000;
+<a class="jxr_linenumber" name="298" href="#298">298</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> k = 0; k < N; ++k) {
+<a class="jxr_linenumber" name="299" href="#299">299</a> <strong class="jxr_keyword">if</strong> (generator.nextInt() >= 0) {
+<a class="jxr_linenumber" name="300" href="#300">300</a> ++walk;
+<a class="jxr_linenumber" name="301" href="#301">301</a> } <strong class="jxr_keyword">else</strong> {
+<a class="jxr_linenumber" name="302" href="#302">302</a> --walk;
+<a class="jxr_linenumber" name="303" href="#303">303</a> }
+<a class="jxr_linenumber" name="304" href="#304">304</a> }
+<a class="jxr_linenumber" name="305" href="#305">305</a> Assert.assertTrue(<span class="jxr_string">"Walked too far astray: "</span> + walk + <span class="jxr_string">"\nNote: This "</span> +
+<a class="jxr_linenumber" name="306" href="#306">306</a> <span class="jxr_string">"test will fail randomly about 1 in 100 times."</span>,
+<a class="jxr_linenumber" name="307" href="#307">307</a> FastMath.abs(walk) < FastMath.sqrt(N) * 2.576);
+<a class="jxr_linenumber" name="308" href="#308">308</a> }
+<a class="jxr_linenumber" name="309" href="#309">309</a>
+<a class="jxr_linenumber" name="310" href="#310">310</a> @Test
+<a class="jxr_linenumber" name="311" href="#311">311</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testNextLong2() {
+<a class="jxr_linenumber" name="312" href="#312">312</a> <strong class="jxr_keyword">int</strong> walk = 0;
+<a class="jxr_linenumber" name="313" href="#313">313</a> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> N = 1000;
+<a class="jxr_linenumber" name="314" href="#314">314</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> k = 0; k < N; ++k) {
+<a class="jxr_linenumber" name="315" href="#315">315</a> <strong class="jxr_keyword">if</strong> (generator.nextLong() >= 0) {
+<a class="jxr_linenumber" name="316" href="#316">316</a> ++walk;
+<a class="jxr_linenumber" name="317" href="#317">317</a> } <strong class="jxr_keyword">else</strong> {
+<a class="jxr_linenumber" name="318" href="#318">318</a> --walk;
+<a class="jxr_linenumber" name="319" href="#319">319</a> }
+<a class="jxr_linenumber" name="320" href="#320">320</a> }
+<a class="jxr_linenumber" name="321" href="#321">321</a> Assert.assertTrue(<span class="jxr_string">"Walked too far astray: "</span> + walk + <span class="jxr_string">"\nNote: This "</span> +
+<a class="jxr_linenumber" name="322" href="#322">322</a> <span class="jxr_string">"test will fail randomly about 1 in 100 times."</span>,
+<a class="jxr_linenumber" name="323" href="#323">323</a> FastMath.abs(walk) < FastMath.sqrt(N) * 2.576);
+<a class="jxr_linenumber" name="324" href="#324">324</a> }
+<a class="jxr_linenumber" name="325" href="#325">325</a>
+<a class="jxr_linenumber" name="326" href="#326">326</a> @Test
+<a class="jxr_linenumber" name="327" href="#327">327</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testNexBoolean2() {
+<a class="jxr_linenumber" name="328" href="#328">328</a> <strong class="jxr_keyword">int</strong> walk = 0;
+<a class="jxr_linenumber" name="329" href="#329">329</a> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> N = 10000;
+<a class="jxr_linenumber" name="330" href="#330">330</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> k = 0; k < N; ++k) {
+<a class="jxr_linenumber" name="331" href="#331">331</a> <strong class="jxr_keyword">if</strong> (generator.nextBoolean()) {
+<a class="jxr_linenumber" name="332" href="#332">332</a> ++walk;
+<a class="jxr_linenumber" name="333" href="#333">333</a> } <strong class="jxr_keyword">else</strong> {
+<a class="jxr_linenumber" name="334" href="#334">334</a> --walk;
+<a class="jxr_linenumber" name="335" href="#335">335</a> }
+<a class="jxr_linenumber" name="336" href="#336">336</a> }
+<a class="jxr_linenumber" name="337" href="#337">337</a> Assert.assertTrue(<span class="jxr_string">"Walked too far astray: "</span> + walk + <span class="jxr_string">"\nNote: This "</span> +
+<a class="jxr_linenumber" name="338" href="#338">338</a> <span class="jxr_string">"test will fail randomly about 1 in 100 times."</span>,
+<a class="jxr_linenumber" name="339" href="#339">339</a> FastMath.abs(walk) < FastMath.sqrt(N) * 2.576);
+<a class="jxr_linenumber" name="340" href="#340">340</a> }
+<a class="jxr_linenumber" name="341" href="#341">341</a>
+<a class="jxr_linenumber" name="342" href="#342">342</a> @Test
+<a class="jxr_linenumber" name="343" href="#343">343</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testNexBytes() {
+<a class="jxr_linenumber" name="344" href="#344">344</a> <strong class="jxr_keyword">long</strong>[] count = <strong class="jxr_keyword">new</strong> <strong class="jxr_keyword">long</strong>[256];
+<a class="jxr_linenumber" name="345" href="#345">345</a> byte[] bytes = <strong class="jxr_keyword">new</strong> byte[10];
+<a class="jxr_linenumber" name="346" href="#346">346</a> <strong class="jxr_keyword">double</strong>[] expected = <strong class="jxr_keyword">new</strong> <strong class="jxr_keyword">double</strong>[256];
+<a class="jxr_linenumber" name="347" href="#347">347</a> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> sampleSize = 100000;
+<a class="jxr_linenumber" name="348" href="#348">348</a>
+<a class="jxr_linenumber" name="349" href="#349">349</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < 256; i++) {
+<a class="jxr_linenumber" name="350" href="#350">350</a> expected[i] = (<strong class="jxr_keyword">double</strong>) sampleSize / 265f;
+<a class="jxr_linenumber" name="351" href="#351">351</a> }
+<a class="jxr_linenumber" name="352" href="#352">352</a>
+<a class="jxr_linenumber" name="353" href="#353">353</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> k = 0; k < sampleSize; ++k) {
+<a class="jxr_linenumber" name="354" href="#354">354</a> generator.nextBytes(bytes);
+<a class="jxr_linenumber" name="355" href="#355">355</a> <strong class="jxr_keyword">for</strong> (byte b : bytes) {
+<a class="jxr_linenumber" name="356" href="#356">356</a> ++count[b + 128];
+<a class="jxr_linenumber" name="357" href="#357">357</a> }
+<a class="jxr_linenumber" name="358" href="#358">358</a> }
+<a class="jxr_linenumber" name="359" href="#359">359</a>
+<a class="jxr_linenumber" name="360" href="#360">360</a> TestUtils.assertChiSquareAccept(expected, count, 0.001);
+<a class="jxr_linenumber" name="361" href="#361">361</a>
+<a class="jxr_linenumber" name="362" href="#362">362</a> }
+<a class="jxr_linenumber" name="363" href="#363">363</a>
+<a class="jxr_linenumber" name="364" href="#364">364</a> @Test
+<a class="jxr_linenumber" name="365" href="#365">365</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testSeeding() {
+<a class="jxr_linenumber" name="366" href="#366">366</a> <em class="jxr_comment">// makeGenerator initializes with fixed seed</em>
+<a class="jxr_linenumber" name="367" href="#367">367</a> RandomGenerator gen = makeGenerator();
+<a class="jxr_linenumber" name="368" href="#368">368</a> RandomGenerator gen1 = makeGenerator();
+<a class="jxr_linenumber" name="369" href="#369">369</a> checkSameSequence(gen, gen1);
+<a class="jxr_linenumber" name="370" href="#370">370</a> <em class="jxr_comment">// reseed, but recreate the second one</em>
+<a class="jxr_linenumber" name="371" href="#371">371</a> <em class="jxr_comment">// verifies MATH-723</em>
+<a class="jxr_linenumber" name="372" href="#372">372</a> gen.setSeed(100);
+<a class="jxr_linenumber" name="373" href="#373">373</a> gen1 = makeGenerator();
+<a class="jxr_linenumber" name="374" href="#374">374</a> gen1.setSeed(100);
+<a class="jxr_linenumber" name="375" href="#375">375</a> checkSameSequence(gen, gen1);
+<a class="jxr_linenumber" name="376" href="#376">376</a> }
+<a class="jxr_linenumber" name="377" href="#377">377</a>
+<a class="jxr_linenumber" name="378" href="#378">378</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> checkSameSequence(RandomGenerator gen1, RandomGenerator gen2) {
+<a class="jxr_linenumber" name="379" href="#379">379</a> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> len = 11; <em class="jxr_comment">// Needs to be an odd number to check MATH-723</em>
+<a class="jxr_linenumber" name="380" href="#380">380</a> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">double</strong>[][] values = <strong class="jxr_keyword">new</strong> <strong class="jxr_keyword">double</strong>[2][len];
<a class="jxr_linenumber" name="381" href="#381">381</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < len; i++) {
-<a class="jxr_linenumber" name="382" href="#382">382</a> values[1][i] = gen2.nextDouble();
+<a class="jxr_linenumber" name="382" href="#382">382</a> values[0][i] = gen1.nextDouble();
<a class="jxr_linenumber" name="383" href="#383">383</a> }
-<a class="jxr_linenumber" name="384" href="#384">384</a> Assert.assertTrue(Arrays.equals(values[0], values[1]));
-<a class="jxr_linenumber" name="385" href="#385">385</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < len; i++) {
-<a class="jxr_linenumber" name="386" href="#386">386</a> values[0][i] = gen1.nextFloat();
-<a class="jxr_linenumber" name="387" href="#387">387</a> }
+<a class="jxr_linenumber" name="384" href="#384">384</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < len; i++) {
+<a class="jxr_linenumber" name="385" href="#385">385</a> values[1][i] = gen2.nextDouble();
+<a class="jxr_linenumber" name="386" href="#386">386</a> }
+<a class="jxr_linenumber" name="387" href="#387">387</a> Assert.assertTrue(Arrays.equals(values[0], values[1]));
<a class="jxr_linenumber" name="388" href="#388">388</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < len; i++) {
-<a class="jxr_linenumber" name="389" href="#389">389</a> values[1][i] = gen2.nextFloat();
+<a class="jxr_linenumber" name="389" href="#389">389</a> values[0][i] = gen1.nextFloat();
<a class="jxr_linenumber" name="390" href="#390">390</a> }
-<a class="jxr_linenumber" name="391" href="#391">391</a> Assert.assertTrue(Arrays.equals(values[0], values[1]));
-<a class="jxr_linenumber" name="392" href="#392">392</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < len; i++) {
-<a class="jxr_linenumber" name="393" href="#393">393</a> values[0][i] = gen1.nextInt();
-<a class="jxr_linenumber" name="394" href="#394">394</a> }
+<a class="jxr_linenumber" name="391" href="#391">391</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < len; i++) {
+<a class="jxr_linenumber" name="392" href="#392">392</a> values[1][i] = gen2.nextFloat();
+<a class="jxr_linenumber" name="393" href="#393">393</a> }
+<a class="jxr_linenumber" name="394" href="#394">394</a> Assert.assertTrue(Arrays.equals(values[0], values[1]));
<a class="jxr_linenumber" name="395" href="#395">395</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < len; i++) {
-<a class="jxr_linenumber" name="396" href="#396">396</a> values[1][i] = gen2.nextInt();
+<a class="jxr_linenumber" name="396" href="#396">396</a> values[0][i] = gen1.nextInt();
<a class="jxr_linenumber" name="397" href="#397">397</a> }
-<a class="jxr_linenumber" name="398" href="#398">398</a> Assert.assertTrue(Arrays.equals(values[0], values[1]));
-<a class="jxr_linenumber" name="399" href="#399">399</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < len; i++) {
-<a class="jxr_linenumber" name="400" href="#400">400</a> values[0][i] = gen1.nextLong();
-<a class="jxr_linenumber" name="401" href="#401">401</a> }
+<a class="jxr_linenumber" name="398" href="#398">398</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < len; i++) {
+<a class="jxr_linenumber" name="399" href="#399">399</a> values[1][i] = gen2.nextInt();
+<a class="jxr_linenumber" name="400" href="#400">400</a> }
+<a class="jxr_linenumber" name="401" href="#401">401</a> Assert.assertTrue(Arrays.equals(values[0], values[1]));
<a class="jxr_linenumber" name="402" href="#402">402</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < len; i++) {
-<a class="jxr_linenumber" name="403" href="#403">403</a> values[1][i] = gen2.nextLong();
+<a class="jxr_linenumber" name="403" href="#403">403</a> values[0][i] = gen1.nextLong();
<a class="jxr_linenumber" name="404" href="#404">404</a> }
-<a class="jxr_linenumber" name="405" href="#405">405</a> Assert.assertTrue(Arrays.equals(values[0], values[1]));
-<a class="jxr_linenumber" name="406" href="#406">406</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < len; i++) {
-<a class="jxr_linenumber" name="407" href="#407">407</a> values[0][i] = gen1.nextInt(len);
-<a class="jxr_linenumber" name="408" href="#408">408</a> }
+<a class="jxr_linenumber" name="405" href="#405">405</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < len; i++) {
+<a class="jxr_linenumber" name="406" href="#406">406</a> values[1][i] = gen2.nextLong();
+<a class="jxr_linenumber" name="407" href="#407">407</a> }
+<a class="jxr_linenumber" name="408" href="#408">408</a> Assert.assertTrue(Arrays.equals(values[0], values[1]));
<a class="jxr_linenumber" name="409" href="#409">409</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < len; i++) {
-<a class="jxr_linenumber" name="410" href="#410">410</a> values[1][i] = gen2.nextInt(len);
+<a class="jxr_linenumber" name="410" href="#410">410</a> values[0][i] = gen1.nextInt(len);
<a class="jxr_linenumber" name="411" href="#411">411</a> }
-<a class="jxr_linenumber" name="412" href="#412">412</a> Assert.assertTrue(Arrays.equals(values[0], values[1]));
-<a class="jxr_linenumber" name="413" href="#413">413</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < len; i++) {
-<a class="jxr_linenumber" name="414" href="#414">414</a> values[0][i] = gen1.nextBoolean() ? 1 : 0;
-<a class="jxr_linenumber" name="415" href="#415">415</a> }
+<a class="jxr_linenumber" name="412" href="#412">412</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < len; i++) {
+<a class="jxr_linenumber" name="413" href="#413">413</a> values[1][i] = gen2.nextInt(len);
+<a class="jxr_linenumber" name="414" href="#414">414</a> }
+<a class="jxr_linenumber" name="415" href="#415">415</a> Assert.assertTrue(Arrays.equals(values[0], values[1]));
<a class="jxr_linenumber" name="416" href="#416">416</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < len; i++) {
-<a class="jxr_linenumber" name="417" href="#417">417</a> values[1][i] = gen2.nextBoolean() ? 1 : 0;
+<a class="jxr_linenumber" name="417" href="#417">417</a> values[0][i] = gen1.nextBoolean() ? 1 : 0;
<a class="jxr_linenumber" name="418" href="#418">418</a> }
-<a class="jxr_linenumber" name="419" href="#419">419</a> Assert.assertTrue(Arrays.equals(values[0], values[1]));
-<a class="jxr_linenumber" name="420" href="#420">420</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < len; i++) {
-<a class="jxr_linenumber" name="421" href="#421">421</a> values[0][i] = gen1.nextGaussian();
-<a class="jxr_linenumber" name="422" href="#422">422</a> }
+<a class="jxr_linenumber" name="419" href="#419">419</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < len; i++) {
+<a class="jxr_linenumber" name="420" href="#420">420</a> values[1][i] = gen2.nextBoolean() ? 1 : 0;
+<a class="jxr_linenumber" name="421" href="#421">421</a> }
+<a class="jxr_linenumber" name="422" href="#422">422</a> Assert.assertTrue(Arrays.equals(values[0], values[1]));
<a class="jxr_linenumber" name="423" href="#423">423</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < len; i++) {
-<a class="jxr_linenumber" name="424" href="#424">424</a> values[1][i] = gen2.nextGaussian();
+<a class="jxr_linenumber" name="424" href="#424">424</a> values[0][i] = gen1.nextGaussian();
<a class="jxr_linenumber" name="425" href="#425">425</a> }
-<a class="jxr_linenumber" name="426" href="#426">426</a> Assert.assertTrue(Arrays.equals(values[0], values[1]));
-<a class="jxr_linenumber" name="427" href="#427">427</a> }
-<a class="jxr_linenumber" name="428" href="#428">428</a>
-<a class="jxr_linenumber" name="429" href="#429">429</a> }
+<a class="jxr_linenumber" name="426" href="#426">426</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < len; i++) {
+<a class="jxr_linenumber" name="427" href="#427">427</a> values[1][i] = gen2.nextGaussian();
+<a class="jxr_linenumber" name="428" href="#428">428</a> }
+<a class="jxr_linenumber" name="429" href="#429">429</a> Assert.assertTrue(Arrays.equals(values[0], values[1]));
+<a class="jxr_linenumber" name="430" href="#430">430</a> }
+<a class="jxr_linenumber" name="431" href="#431">431</a>
+<a class="jxr_linenumber" name="432" href="#432">432</a> }
</pre>
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