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Posted to issues@commons.apache.org by "ani5rudh (via GitHub)" <gi...@apache.org> on 2023/07/16 18:06:03 UTC
[GitHub] [commons-statistics] ani5rudh opened a new pull request, #49: [STATISTICS-76]: Max Implementation
ani5rudh opened a new pull request, #49:
URL: https://github.com/apache/commons-statistics/pull/49
(no comment)
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[GitHub] [commons-statistics] ani5rudh commented on a diff in pull request #49: [STATISTICS-76]: Max Implementation
Posted by "ani5rudh (via GitHub)" <gi...@apache.org>.
ani5rudh commented on code in PR #49:
URL: https://github.com/apache/commons-statistics/pull/49#discussion_r1264800171
##########
commons-statistics-descriptive/src/test/java/org/apache/commons/statistics/descriptive/MaxTest.java:
##########
@@ -0,0 +1,187 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.commons.statistics.descriptive;
+
+import java.util.Arrays;
+import java.util.function.DoubleSupplier;
+import java.util.stream.Stream;
+import org.apache.commons.rng.UniformRandomProvider;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+
+/**
+ * Test for {@link Max}.
+ */
+final class MaxTest {
+
+ @Test
+ void testEmpty() {
+ Max max = Max.create();
+ Assertions.assertEquals(Double.NEGATIVE_INFINITY, max.getAsDouble());
+ }
+
+ @Test
+ void testIncrement() {
+ // Test the max after each incremental update
+ // First parameter of testArray is the value that would be added
+ // Second parameter of testArray is the max we expect after adding the value
+ double[][] testArray = {
+ {1729.22, 1729.22},
+ {2520.35, 2520.35},
+ {2010.87, 2520.35},
+ {100000000.1, 100000000.1},
+ {+0.0, 100000000.1},
+ {-0.0, 100000000.1},
+ {Double.MAX_VALUE, Double.MAX_VALUE},
+ {Double.POSITIVE_INFINITY, Double.POSITIVE_INFINITY},
+ {Double.NEGATIVE_INFINITY, Double.POSITIVE_INFINITY}
+ };
+
+ Max stat = Max.create();
+ for (final double[] valueAndExpected: testArray) {
+ final double value = valueAndExpected[0];
+ final double expected = valueAndExpected[1];
+ stat.accept(value);
+ Assertions.assertEquals(expected, stat.getAsDouble());
+ }
+ }
+
+ @Test
+ void testNaN() {
+ // Test non-nan values cannot revert a NaN
+ double[] testArray = {Double.NaN, +0.0d, -0.0d, Double.POSITIVE_INFINITY, Double.NEGATIVE_INFINITY};
+ Max stat = Max.create();
+ for (final double x : testArray) {
+ stat.accept(x);
+ Assertions.assertEquals(Double.NaN, stat.getAsDouble());
+ }
+ }
+
+ @ParameterizedTest
+ @MethodSource
+ void testMax(double[] values, double expected) {
+ Max stat = Max.create();
+ Arrays.stream(values).forEach(stat);
+ double actual = stat.getAsDouble();
+ Assertions.assertEquals(expected, actual, "max");
+ Assertions.assertEquals(expected, Max.of(values).getAsDouble(), "max");
+ }
+
+ static Stream<Arguments> testMax() {
+ return Stream.of(
+ Arguments.of(new double[] {}, Double.NEGATIVE_INFINITY),
+ Arguments.of(new double[] {3.14}, 3.14),
+ Arguments.of(new double[] {12.34, 56.78, -2.0}, 56.78),
+ Arguments.of(new double[] {Double.NaN, 3.14, Double.NaN, Double.NaN}, Double.NaN),
+ Arguments.of(new double[] {-1d, 1d, Double.NaN}, Double.NaN),
+ Arguments.of(new double[] {Double.NaN, Double.NaN, Double.NaN}, Double.NaN),
+ Arguments.of(new double[] {0.0d, Double.NaN, +0.0d, -0.0d, Double.POSITIVE_INFINITY, Double.NEGATIVE_INFINITY}, Double.NaN),
+ Arguments.of(new double[] {+0.0d, -0.0d, 1.0, 3.14}, 3.14),
+ Arguments.of(new double[] {-0.0, +0.0}, 0.0),
+ Arguments.of(new double[] {0.0, -0.0}, 0.0),
+ Arguments.of(new double[] {0.0, +0.0}, 0.0),
+ Arguments.of(new double[] {1.2, -34.56, 456.789, -5678.9012}, 456.789),
+ Arguments.of(new double[] {-23467824, 23648, 2368, 23749, -23424, -23492, -92397747}, 23749),
+ Arguments.of(new double[] {0.0d, +0.0d, -0.0d, Double.POSITIVE_INFINITY, Double.MIN_VALUE}, Double.POSITIVE_INFINITY),
+ Arguments.of(new double[] {0.0d, +0.0d, -0.0d, Double.POSITIVE_INFINITY, -Double.MIN_VALUE}, Double.POSITIVE_INFINITY),
+ Arguments.of(new double[] {0.0d, +0.0d, -0.0d, Double.POSITIVE_INFINITY, Double.NEGATIVE_INFINITY, Double.MIN_VALUE}, Double.POSITIVE_INFINITY)
Review Comment:
Thanks @kinow, I've updated the tests for Max per your feedback.
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[GitHub] [commons-statistics] kinow commented on a diff in pull request #49: [STATISTICS-76]: Max Implementation
Posted by "kinow (via GitHub)" <gi...@apache.org>.
kinow commented on code in PR #49:
URL: https://github.com/apache/commons-statistics/pull/49#discussion_r1264731414
##########
commons-statistics-descriptive/src/test/java/org/apache/commons/statistics/descriptive/MaxTest.java:
##########
@@ -0,0 +1,187 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.commons.statistics.descriptive;
+
+import java.util.Arrays;
+import java.util.function.DoubleSupplier;
+import java.util.stream.Stream;
+import org.apache.commons.rng.UniformRandomProvider;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+
+/**
+ * Test for {@link Max}.
+ */
+final class MaxTest {
+
+ @Test
+ void testEmpty() {
+ Max max = Max.create();
+ Assertions.assertEquals(Double.NEGATIVE_INFINITY, max.getAsDouble());
+ }
+
+ @Test
+ void testIncrement() {
+ // Test the max after each incremental update
+ // First parameter of testArray is the value that would be added
+ // Second parameter of testArray is the max we expect after adding the value
+ double[][] testArray = {
+ {1729.22, 1729.22},
+ {2520.35, 2520.35},
+ {2010.87, 2520.35},
+ {100000000.1, 100000000.1},
+ {+0.0, 100000000.1},
+ {-0.0, 100000000.1},
+ {Double.MAX_VALUE, Double.MAX_VALUE},
+ {Double.POSITIVE_INFINITY, Double.POSITIVE_INFINITY},
+ {Double.NEGATIVE_INFINITY, Double.POSITIVE_INFINITY}
+ };
+
+ Max stat = Max.create();
+ for (final double[] valueAndExpected: testArray) {
+ final double value = valueAndExpected[0];
+ final double expected = valueAndExpected[1];
+ stat.accept(value);
+ Assertions.assertEquals(expected, stat.getAsDouble());
+ }
+ }
+
+ @Test
+ void testNaN() {
+ // Test non-nan values cannot revert a NaN
+ double[] testArray = {Double.NaN, +0.0d, -0.0d, Double.POSITIVE_INFINITY, Double.NEGATIVE_INFINITY};
+ Max stat = Max.create();
+ for (final double x : testArray) {
+ stat.accept(x);
+ Assertions.assertEquals(Double.NaN, stat.getAsDouble());
+ }
+ }
+
+ @ParameterizedTest
+ @MethodSource
+ void testMax(double[] values, double expected) {
+ Max stat = Max.create();
+ Arrays.stream(values).forEach(stat);
+ double actual = stat.getAsDouble();
+ Assertions.assertEquals(expected, actual, "max");
+ Assertions.assertEquals(expected, Max.of(values).getAsDouble(), "max");
+ }
+
+ static Stream<Arguments> testMax() {
+ return Stream.of(
+ Arguments.of(new double[] {}, Double.NEGATIVE_INFINITY),
+ Arguments.of(new double[] {3.14}, 3.14),
+ Arguments.of(new double[] {12.34, 56.78, -2.0}, 56.78),
+ Arguments.of(new double[] {Double.NaN, 3.14, Double.NaN, Double.NaN}, Double.NaN),
+ Arguments.of(new double[] {-1d, 1d, Double.NaN}, Double.NaN),
+ Arguments.of(new double[] {Double.NaN, Double.NaN, Double.NaN}, Double.NaN),
+ Arguments.of(new double[] {0.0d, Double.NaN, +0.0d, -0.0d, Double.POSITIVE_INFINITY, Double.NEGATIVE_INFINITY}, Double.NaN),
+ Arguments.of(new double[] {+0.0d, -0.0d, 1.0, 3.14}, 3.14),
+ Arguments.of(new double[] {-0.0, +0.0}, 0.0),
+ Arguments.of(new double[] {0.0, -0.0}, 0.0),
+ Arguments.of(new double[] {0.0, +0.0}, 0.0),
+ Arguments.of(new double[] {1.2, -34.56, 456.789, -5678.9012}, 456.789),
+ Arguments.of(new double[] {-23467824, 23648, 2368, 23749, -23424, -23492, -92397747}, 23749),
+ Arguments.of(new double[] {0.0d, +0.0d, -0.0d, Double.POSITIVE_INFINITY, Double.MIN_VALUE}, Double.POSITIVE_INFINITY),
+ Arguments.of(new double[] {0.0d, +0.0d, -0.0d, Double.POSITIVE_INFINITY, -Double.MIN_VALUE}, Double.POSITIVE_INFINITY),
+ Arguments.of(new double[] {0.0d, +0.0d, -0.0d, Double.POSITIVE_INFINITY, Double.NEGATIVE_INFINITY, Double.MIN_VALUE}, Double.POSITIVE_INFINITY)
Review Comment:
Quickly compared the code in this PR with the existing Min code, and everything looks OK. The only part I noticed that did not change was this with the `Double.MIN_VALUE`'s. Is that intentional or were we supposed to use `Double.MAX_VALUE` for this test?
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[GitHub] [commons-statistics] aherbert commented on a diff in pull request #49: [STATISTICS-76]: Max Implementation
Posted by "aherbert (via GitHub)" <gi...@apache.org>.
aherbert commented on code in PR #49:
URL: https://github.com/apache/commons-statistics/pull/49#discussion_r1265505789
##########
commons-statistics-descriptive/src/test/java/org/apache/commons/statistics/descriptive/MaxTest.java:
##########
@@ -0,0 +1,188 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.commons.statistics.descriptive;
+
+import java.util.Arrays;
+import java.util.function.DoubleSupplier;
+import java.util.stream.Stream;
+import org.apache.commons.rng.UniformRandomProvider;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+
+/**
+ * Test for {@link Max}.
+ */
+final class MaxTest {
+
+ @Test
+ void testEmpty() {
+ Max max = Max.create();
+ Assertions.assertEquals(Double.NEGATIVE_INFINITY, max.getAsDouble());
+ }
+
+ @Test
+ void testIncrement() {
+ // Test the max after each incremental update
+ // First parameter of testArray is the value that would be added
+ // Second parameter of testArray is the max we expect after adding the value
+ double[][] testArray = {
+ {1729.22, 1729.22},
+ {2520.35, 2520.35},
+ {2010.87, 2520.35},
+ {100000000.1, 100000000.1},
+ {+0.0, 100000000.1},
+ {-0.0, 100000000.1},
+ {Double.MAX_VALUE, Double.MAX_VALUE},
+ {Double.POSITIVE_INFINITY, Double.POSITIVE_INFINITY},
+ {Double.NEGATIVE_INFINITY, Double.POSITIVE_INFINITY}
+ };
+
+ Max stat = Max.create();
+ for (final double[] valueAndExpected: testArray) {
+ final double value = valueAndExpected[0];
+ final double expected = valueAndExpected[1];
+ stat.accept(value);
+ Assertions.assertEquals(expected, stat.getAsDouble());
+ }
+ }
+
+ @Test
+ void testNaN() {
+ // Test non-nan values cannot revert a NaN
+ double[] testArray = {Double.NaN, +0.0d, -0.0d, Double.POSITIVE_INFINITY, Double.NEGATIVE_INFINITY};
+ Max stat = Max.create();
+ for (final double x : testArray) {
+ stat.accept(x);
+ Assertions.assertEquals(Double.NaN, stat.getAsDouble());
+ }
+ }
+
+ @ParameterizedTest
+ @MethodSource
+ void testMax(double[] values, double expected) {
+ Max stat = Max.create();
+ Arrays.stream(values).forEach(stat);
+ double actual = stat.getAsDouble();
+ Assertions.assertEquals(expected, actual, "max");
+ Assertions.assertEquals(expected, Max.of(values).getAsDouble(), "max");
Review Comment:
The assertion message here is not helpful to distinguish this case. You could use "of(values)". Just change the test data so the test fails and you can see how JUnit will output the message. This should be helpful to diagnose the problem with the code.
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[GitHub] [commons-statistics] aherbert merged pull request #49: STATISTICS-76: Max Implementation
Posted by "aherbert (via GitHub)" <gi...@apache.org>.
aherbert merged PR #49:
URL: https://github.com/apache/commons-statistics/pull/49
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[GitHub] [commons-statistics] codecov-commenter commented on pull request #49: [STATISTICS-76]: Max Implementation
Posted by "codecov-commenter (via GitHub)" <gi...@apache.org>.
codecov-commenter commented on PR #49:
URL: https://github.com/apache/commons-statistics/pull/49#issuecomment-1637161163
## [Codecov](https://app.codecov.io/gh/apache/commons-statistics/pull/49?src=pr&el=h1&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache) Report
> Merging [#49](https://app.codecov.io/gh/apache/commons-statistics/pull/49?src=pr&el=desc&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache) (f9706d6) into [master](https://app.codecov.io/gh/apache/commons-statistics/commit/a1094d6841ee746d5383cca0a4a380ea74c97db1?el=desc&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache) (a1094d6) will **not change** coverage.
> The diff coverage is `n/a`.
```diff
@@ Coverage Diff @@
## master #49 +/- ##
=========================================
Coverage 99.82% 99.82%
Complexity 1688 1688
=========================================
Files 65 65
Lines 4472 4472
Branches 756 756
=========================================
Hits 4464 4464
Misses 4 4
Partials 4 4
```
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