How do I save or load my variables to or from files with similar names?

For example, within a FOR loop, I calculate values for my variables 'a', 'b', and 'c', ten times. I want to save these variables for each iteration to MAT-files with names test01.mat, test02.mat....test10.mat.

Answer 1

[MathWorks Support Team]

You can use string concatenation to create the strings for your filenames:

a = 1;

b = 2;

c = 3;

filename = 'test';

for i = 1:10

     a = a + 1;

     b = b + 2;

     c = c + 3;

     str_counter = num2str(i);

     if i < 10

         str_counter = ['0' str_counter]; %create '01' - '09' strings for 'test01.mat' - 'test09.mat'

     end

     new_filename = [filename str_counter]; %concatenate 'test' to the test number

     save(new_filename,'a','b','c')

end

For more information on string concatenation, type

help horzcat

and

help strcat

at the MATLAB command prompt.

For information on how to import multiple files into the MATLAB workspace, see the Related Solution.