Load structure without delete variable

Hi everybody. In my code, I load from a FileName.mat file the strucure "matrix." that contain matrix A, B and C. However in my script I load several time this file because I manipulate it, so I need to load the "original" version to compute different analysis. In addiction in my code I compute "matrix.D". The problem is that everytime that I load FileName.mat file, all variable conteined in the strucure "matrix." are deleted (and so also "matrix.D" that must be the same for all analysis). Is there a method to load a strucure, without delete the other variable contained in the strucure?

Answer 1

[Jan]

Yes, there is a method. Simply use another variable:

matrixReloaded = load('FileName.mat');
matrix.A       = matrixReloaded.A;
matrix.B       = matrixReloaded.B;
matrix.C       = matrixReloaded.C;

But if you create a copy already, why not keeping in directly?

matrix = load('FileName.mat');
matrix.A_Orig = matrix.A;
matrix.B_Orig = matrix.B;
matrix.C_Orig = matrix.C;

Then restoring the original values are available without reloading.

[Alberto Mora]

Thank you very much Jan Simon!!!!!