topic Re: Does JMP still have a function called Exact Wilcoxon Rank Sum test? in Discussions

Does JMP still have a function called Exact Wilcoxon Rank Sum test?

Windermere — Thu, 24 Jan 2019 00:56:34 GMT

Dear Experts,

In the older version of JMP, there is a function called "Exact wilcoxon Rank Sum test" specifically used for nonparametric comparison for small sample size (e.g., n<5). However, in the current version (14.0) I did not see this function any more. Can anyone suggest a new function in the new version with similar or the same power as the "Exact wilcoxon Rank Sum test"?

Oneway( Y( :C10 ), X( :Good T1D Vs control ), Wilcoxon Test( 1 ),
	Wilcoxon Exact Test( 1 ) ),

This is the script that I can use in the previous version, but not anymore; it only caculate wilcoxon Test (1) but not the wilcoxon Exact test.

Can anyone tell me why?

Thanks

Re: Does JMP still have a function called Exact Wilcoxon Rank Sum test?

louv — Thu, 24 Jan 2019 01:51:00 GMT

https://www.jmp.com/content/dam/jmp/documents/en/academic/learning-library/04-nonparametric-tests.pdf

Re: Does JMP still have a function called Exact Wilcoxon Rank Sum test?

Windermere — Thu, 24 Jan 2019 03:04:52 GMT

For some reason, the current version of my JMP does not have the choice of "Exact test"..

Do you know why?

Re: Does JMP still have a function called Exact Wilcoxon Rank Sum test?

txnelson — Thu, 24 Jan 2019 03:14:24 GMT

I assume your data has more than 2 groups in your Oneway analysis. The test is only available if the X Factor column only has 2 levels. Below is the documentation taken from the Scripting Index

Re: Does JMP still have a function called Exact Wilcoxon Rank Sum test?

Mark_Bailey — Thu, 24 Jan 2019 12:50:31 GMT

I found it is still listed in the latest version of JMP:

It still works, too:

Re: Does JMP still have a function called Exact Wilcoxon Rank Sum test?

Windermere — Thu, 24 Jan 2019 16:47:26 GMT

I believe that is the software version issue, only the JMP Pro has the exact wilcoxoln. The JMP does not have that...

I only have two groups...That is for sure.

Well... I hope my bet is correct. If not please suggesst a way to do it in JMP

Re: Does JMP still have a function called Exact Wilcoxon Rank Sum test?

Windermere — Fri, 25 Jan 2019 15:13:01 GMT

I have the version of JMP.. But only JMP Pro can do Exact Wilcoxon...I have got confirmation.