I made a MWE and got a solution. When you see what was wrong you will say "oh man"....
I used the following as an input.
Prot_H_cell = {'AA', 'BB', 'AB', 'AC'};
Prot_M_cell = {'CC', 'AC', 'DA', 'AA'};
This code will fail
x=length(Prot_H_cell);
y=length(Prot_M_cell);
for ii=Prot_H_cell(1:x);
for jj=Prot_M_cell(1:y);
W(ii,jj)={strcmp(Prot_H_cell(ii),Prot_M_cell(jj))}
end
end
And this wont cause the error
x=length(Prot_H_cell);
y=length(Prot_M_cell);
for ii=1:x
for jj=1:y
W(ii,jj)={strcmp(Prot_H_cell(ii),Prot_M_cell(jj))}
end
end
hope this helps.
