Details
-
Bug
-
Status: Closed
-
Minor
-
Resolution: Fixed
-
0.4
-
None
-
None
Description
If fewer than 100 samples are add()ed to an instance of org.apache.mahout.math.stats.OnlineSummarizer an exception will be thrown during a sort when getQuartile() is called:
Caused by: java.lang.IndexOutOfBoundsException: from: 0, to: 99, size=89
at org.apache.mahout.math.list.AbstractList.checkRangeFromTo(AbstractList.java:87)
at org.apache.mahout.math.list.DoubleArrayList.sortFromTo(DoubleArrayList.java:573)
at org.apache.mahout.math.stats.OnlineSummarizer.sort(OnlineSummarizer.java:116)
at org.apache.mahout.math.stats.OnlineSummarizer.getQuartile(OnlineSummarizer.java:129)
The problem is that sort is on index range 0,99 but 0,n-1 should be used.