And I figured it out, sorry to bother the list.
The normal approximation I was using is not accurate in the presence of ties.
Sam
On Thu, Oct 6, 2011 at 10:56 AM, Sam Stewart wrote:
> So I checked it with the wilcox_test in the coin library, and got the
> same result. That makes me more confid
So I checked it with the wilcox_test in the coin library, and got the
same result. That makes me more confident that I made a mistake, but
still doesn't help me find it
d =
data.frame(value=c(dropouts,remain),group=c(rep("dropout",length(dropouts)),rep("remain",length(remain
wilcox_test(valu
Hello List,
I'm trying to prepare some lecture notes on non parametric methods,
and I can't manually reproduce the results of the wilcox.test function
for ordinal data.
The data I'm using are from David Howell's website, available here
http://www.uvm.edu/~dhowell/StatPages/More_Stuff/OrdinalChis
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