You are viewing a plain text version of this content. The canonical link for it is here.
Posted to user@commons.apache.org by Shing Hing Man <ma...@yahoo.com> on 2004/08/11 16:41:01 UTC
[Math] Getter methods in Frequency when there is no data
Hi,
I have tested all the getter methods of
org.apache.commons.math.stat.univariate.Frequency
when
no data has been added. (If anyone is interested, the
JUnit test file
is attached.)
Here is a summary of the result.
Method Result
getCount returns 0 (as expected)
getCumFreq
java.util.NoSuchElementException
getCumPct
java.util.NoSuchElementException
getPct returns NaN
f.getSumFreq return 0 (as expected)
Is it reasonable to expect all the getter methods to
return 0, when
there is no data ?
My version of org.apache.commons.math is dated 10th
August, 2004.
regards,
Shing
=====
Home page :
http://uk.geocities.com/matmsh/index.html
___________________________________________________________ALL-NEW Yahoo! Messenger - all new features - even more fun! http://uk.messenger.yahoo.com