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Posted to commits@commons.apache.org by se...@apache.org on 2013/07/16 11:35:54 UTC
svn commit: r1503631 -
/commons/proper/math/trunk/src/main/java/org/apache/commons/math3/stat/Frequency.java
Author: sebb
Date: Tue Jul 16 09:35:54 2013
New Revision: 1503631
URL: http://svn.apache.org/r1503631
Log:
Javadoc clarifications
Modified:
commons/proper/math/trunk/src/main/java/org/apache/commons/math3/stat/Frequency.java
Modified: commons/proper/math/trunk/src/main/java/org/apache/commons/math3/stat/Frequency.java
URL: http://svn.apache.org/viewvc/commons/proper/math/trunk/src/main/java/org/apache/commons/math3/stat/Frequency.java?rev=1503631&r1=1503630&r2=1503631&view=diff
==============================================================================
--- commons/proper/math/trunk/src/main/java/org/apache/commons/math3/stat/Frequency.java (original)
+++ commons/proper/math/trunk/src/main/java/org/apache/commons/math3/stat/Frequency.java Tue Jul 16 09:35:54 2013
@@ -48,6 +48,12 @@ import org.apache.commons.math3.util.Mat
* to combine integral types with chars in a frequency distribution will fail.
* </p>
* <p>
+ * Float is not coerced to Double.
+ * Since they are not Comparable with each other the user must do any necessary coercion.
+ * Float.NaN and Double.NaN are not treated specially; they may occur in input and will
+ * occur in output if appropriate.
+ * </b>
+ * <p>
* The values are ordered using the default (natural order), unless a
* <code>Comparator</code> is supplied in the constructor.</p>
*
@@ -301,7 +307,9 @@ public class Frequency implements Serial
* Returns the percentage of values that are equal to v
* (as a proportion between 0 and 1).
* <p>
- * Returns <code>Double.NaN</code> if no values have been added.</p>
+ * Returns <code>Double.NaN</code> if no values have been added.
+ * Returns 0 if at least one value has been added, but v is not comparable
+ * to the values set.</p>
*
* @param v the value to lookup
* @return the proportion of values equal to v