question regarding saving variables from internal matlab files

Hello everyone! i am currently trying to save a variable named Q located in the following path: C:\Program Files\MATLAB\MATLAB Production Server\R2015a\toolbox\vision\vision\+vision\+internal\+calibration\StereoParametersImpl.m> this is, of course. an internal matlab file. what i wanted to do was using save function so i added inside this file in line 282, right after Q is being evaluated, the line : save ('Q.mat','Q'); yet after loading in the other scope i need Q for i get an error saying no such file exists.

I have tried to save and load Q, and also tried making Q global inside this internal matlab file though both ideas don't work. i can't change the functions return values and therefor those are my only 2 options and they both fail. I would appreciate any help if you have an idea for a solution.

best regards, Ohad

Answer 1

[William Smith]

Have you tried adding a breakpoint at that line, then when the breakpoint is hit, save the variable manually using your command above? Also possible - the file is being saved in a different folder from where you expect it to be saved. If you breakpoint on the save and do 'pwd' you can confirm where it's about to be saved.