Error in function unreproducible in dugger.

1 view (last 30 days)
Val Schmidt
Val Schmidt on 23 Oct 2015
Answered: Val Schmidt on 23 Oct 2015
I'm stumped and need some help.
I've the following simple statement:
pp = ([cc(1) Iinf.Width-cc(2)]) - floor([Iinf.Height/2 Iinf.Width/2]);
which subtracts two 1x2 matrices. When I execute this within a function, I get an error:
Error using - Matrix dimensions must agree.
But if I set 'dbstop on error', and then attempt to re-execute the line after the error and stop in the program, it executed cleanly. Or if I set a break point at that point, and then execute it by clicking 'step' it will fail, but if I select the line and R-click->evaluate, it executed cleanly. If I check the size of each matrix they both report 1x2. I can't figure out what's going on or how to debug it.
  1 Comment
Sean de Wolski
Sean de Wolski on 23 Oct 2015
Can you post the whole function to reproduce it?

Sign in to comment.

Answers (2)

Image Analyst
Image Analyst on 23 Oct 2015
Put these lines before that line:
message = sprintf('Height = %f\nWidth = %f', Iinf.Height, Iinf.Width)
What do yo usee popup and what do you see in the command window?

Val Schmidt
Val Schmidt on 23 Oct 2015
I found the error. In another toolbox there is a function called cc.m, which was colliding with the variable defined as cc.
Changing the variable name fixed the problem.



Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!