Fisher Exact test on rxc tables

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by siyisoy » Thu Sep 27, 2018 8:47 am

Hi
Fisher exact tests seems to be available only for 2x2 tables.
Can I perform it for bigger tables?
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by Ravi » Thu Sep 27, 2018 10:44 pm

Nope, at least not in jamovi at the moment :slightly_smiling_face:
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by jonathon » Thu Sep 27, 2018 11:08 pm

if you create an issue on our issues page, we'll see about broadening this:

https://github.com/jamovi/jamovi/issues

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by RHainez » Mon Nov 11, 2019 5:21 pm

I bump this up because I'm interested in being able to perform a Fisher"s exact test when comparing proportions (instead of a khi²).

Have a nice day.
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by Wake » Wed Jan 22, 2020 2:21 pm

Is it possible to do a Fisher Exact test on a bigger matrix than 2x2 using the Rj editor.

I tried fisher.test(data[c(1:2)]) but got the error message "all entries of 'x' must be nonnegative and finite. I get this whether the data in columns 1 and 2 form a 2x2 table or a 3x2 table. I get the same for fisher.test(data[c('A','B')])

The other version of the syntax I tried was fisher.test(data[c(1)],data[c(2)]) which produces 'x' must have at least 2 rows and columns.

Any ideas?

Cheers,

Wake
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by MAgojam » Wed Jan 22, 2020 5:25 pm

Wake wrote:Is it possible to do a Fisher Exact test on a bigger matrix than 2x2 using the Rj editor.


Hi, Wake.
Take a look at the screenshot, maybe you will find the answer.
screenshot.PNG
screenshot.PNG (69.15 KiB) Viewed 261 times

Cheers,
Maurizio
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by Wake » Thu Jan 23, 2020 5:22 pm

Thank you.
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