Unable to perform assignment because the indices on the left side are not compatible with the size of the right side.

clear all
load Data_allRT.mat
load exptM.mat
load Data_part1.mat
load Data_part2.mat
 
m=0;
for n=1:10000;
    x = shuffledData_part1;
    y = shuffledData_part2;
    [h,p]=ttest2(x',y');
    DD(n)=p;
    if p<0.05;
        m=m+1;
    end
end

Answer 1

[Walter Roberson]

If your x and y are 2D arrays (not vectors) with more than 1 column, then h and p will have one entry per column.

Note that ttest2() is deterministic and that you are running the same test each time. Perhaps you had intended to index one row or one column each iteration ?