MATLAB: What could be the cause of error “Assignment has fewer non-singleton rhs dimensions than non-singleton subscripts”

Question

 VEC1(:,:,z)=eVects(:,toto1(:,z),z);

Answer 1

You can check this using the debugger:

• https://www.mathworks.com/help/matlab/debugging-code.html
• https://www.mathworks.com/help/matlab/matlab_prog/debugging-process-and-features.html

E.g.:

dbstop if error

Then run the code again. When Matlab stops at the error, check the dimensions:

size(VEC1(:,:,z))
size(eVects(:,toto1(:,z),z))

They will not match.