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Integrating a t-test into a function how-to

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Mau Dudas
Mau Dudas on 27 Nov 2019
Answered: Jeff Miller on 28 Nov 2019
Hey, I need to run two t-tests on my dataset in a fucntion one is meant to compare the means of reaction times and the other has to compare the two variances between
coefficient values (std/means).
The ttest function works fine until I try and integrate it into a function.
This is what I have so far but it seems to come up with the error message undefined variable 'x' or undefined variable 'y'
I've tried renaming the means as 'c1m' but it keeps swithcing them out for '1cm'
function [h,p] = suffer3(data,x,y)
files = dir(data);
for s = 1:size(files,1)
temp = load(file(s).name;
tempdata =;
x = mean (tempdata(tempdata (:,1)==1,2))
y = mean (tempdata(tempdata(:,1)==0,2))
[h,p]= ttest2(x, y)
Both my 'h' & 'p' outputs say NaN when i run the function.
Little help as to what I'm doing wrong would be grandly appreciated :)

Answers (1)

Jeff Miller
Jeff Miller on 28 Nov 2019
Put in a breakpoint at the ttest2 line and check the inputs x and y that you are passing. These must not be what ttest2 expects.

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