In article <[EMAIL PROTECTED]>,
Jan <[EMAIL PROTECTED]> wrote:
>I have two samples (size about 50) from discrete distributions.
>Does anybody know some nonparametric tests to
>check whether the two samples come from
>the same distribution?
>For continuous distributions there is Kolmogorov-Smirnov
>two sample test but I need similar test for discrete case.
One can lose some power by using randomization to spread
out the points, and then use the Kolmogorov-Smirnov or
other such tests. One cannot get non-randomized tests
which are distribution free for discrete distributions.
Without doing this, the K-S test is conservative; that
is, the actual p-value is smaller than you think.
--
This address is for information only. I do not claim that these views
are those of the Statistics Department or of Purdue University.
Herman Rubin, Dept. of Statistics, Purdue Univ., West Lafayette IN47907-1399
[EMAIL PROTECTED] Phone: (765)494-6054 FAX: (765)494-0558
=================================================================
Instructions for joining and leaving this list and remarks about
the problem of INAPPROPRIATE MESSAGES are available at
http://jse.stat.ncsu.edu/
=================================================================
