MATLAB Answers


??? Subscripted assignment between dissimilar structures.

Asked by AP
on 11 Jun 2011
Latest activity Commented on by Matt J
on 24 Nov 2014

I am using a structure in my script m-file. Everytime I run my code, I get the following error:

??? Subscripted assignment between dissimilar structures.

To run the code, I clear all the variables and then re-run the code. This way I don't get the error. Is there something that I am missing?



Log in to comment.

3 Answers

Answer by Jan Simon
on 12 Jun 2011
 Accepted Answer

The error message contains the line number also. Inspect this line to find out, why the structs are different.

Another method for debugging is using the debugger (sic!):

dbstop if error

  1 Comment

Thank you Jan. This is a really cool.

Log in to comment.

Answer by Loginatorist on 12 Jun 2011

It sounds like you are running a script instead of a function? If so, my guess is that with a clear workspace your code creates some variables, but these creation assignments don't work right when the variables are built up by the code if run again without a clear workspace. This is the best I can do without seeing the code...

  1 Comment

Thank you. The error was because of the following:
in the definition of the structure I had defined MaterialSize whereas in my code I had used Materialsize where the letter 's' is not capitalized as in the definition.

Log in to comment.

Answer by Marine
on 24 Nov 2014

I have actually the same mistake as AP, but the point is that when I test me structures, they are supposed to be the same in the program, and I really don't know why I got this message. One of my structure comes from a .mat-file, and the other is describe in my script... Can anybody help me please ?

  1 Comment

What about Jan's answer, recommending dbstop? What does that reveal?

Log in to comment.

Discover what MATLAB® can do for your career.

Opportunities for recent engineering grads.

Apply Today

Win prizes and improve your MATLAB skills

Play today