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Level I

Hi, I'm fairly new to JMP and have been using it for a small research project. (I'm just learning, and am a student not a statistician, but really like how intuitive the analyses are to run and the number and types of analyses supported.)

I'm struggling with putting together a Fisher's Exact Test for a small number of nominal data. I have 10 subjects who had their limb pulse measured before and after tourniquet application, then after two movements with the tourniquet on. I would like to compare pulse after application (all 10 are no pulse then) with pulse after movement 1 (7 are no pulse, 3 have pulse). But what the Y by X in JMP is giving me for Fisher's Exact test (and Chi Square) doesn't show any values for the RSquare, Pearson, or Fisher's Exact.

(online calculators like the one at socscistatistics.com do give me the data I'm looking for, but I can't seem to do it in JMP)

My data table looks like this:

 Before Tourniquet After Apply Tourniquet After Move 1 After Move 2 Yes No Yes No Yes No No Yes Yes No No No Yes No No No Yes No No Yes Yes No No Yes Yes No No Yes Yes No Yes No Yes No Yes No Yes No No Yes

I've also tried setting it up like this:

 After Apply After Move 1 Pulse Yes 0 3 Pulse No 10 7

But, again, getting the same thing in Y by X, which looks like the screenshot below.

How can / should I be setting this up so that I can get statistical data of pulse after move 1 vs pulse after apply?

Thanks for any assistance,

Ari

``````Contingency(
Y( :After Apply ),
X( :After Move 1 ),
Contingency Table,
Fisher's Exact Test( 1 )
)``````
1 ACCEPTED SOLUTION

Accepted Solutions
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Level VII

I'm not sure what question you are trying to answer?  Is the question: What is the affect of moves on pulse? Or does pulse change with moves? I attached the JMP data table as I think it might be setup.  I also added a script you can click on to see the analysis.

3 REPLIES 3
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Super User

Your data has 2 dimensions, When the Tourniquet was applied, and Applied before or after a move.  Therefore, the data needs to be setup like the image below

 Tourniquet After Move Before Yes After Yes Before No Before Yes After No Before No After Yes

The Fit Y by X platform can then be opened and the Tourniquet column used as the Y Response column, and the After Move used as the X Factor column

Jim
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Level VII

I'm not sure what question you are trying to answer?  Is the question: What is the affect of moves on pulse? Or does pulse change with moves? I attached the JMP data table as I think it might be setup.  I also added a script you can click on to see the analysis.

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Level I