Loading and saving Mat file in a nested loop in Matlab

Question

I want to load and save inside a nested loop in Matlab using "increasing" names, e.g.

for j=1:J
   for m=1:M
      load Bmj.mat
      ... A=...
      save A as Amj.mat
   end
end

Any suggestion?

Community · Accepted Answer · 2017-05-23 12:06:35Z

2

You can use sprintf to format strings

for ii=1:J
    for m=1:M
        suffix = sprintf( '%d%d.mat', ii, m );
        load( ['B', suffix] );
        % process...
        save( ['A', suffix], 'A' );
    end
end

PS,
It is best not to use i as a variable name in Matlab.

edited May 23, 2017 at 12:06

CommunityBot

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answered Apr 21, 2015 at 15:13

Shai

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1 Comment

krisdestruction Over a year ago

I know it works but personally I don't usually see , for horizcat. +1 anyways

Ander Biguri · Accepted Answer · 2015-04-21 14:01:32Z

1

What about save(strcat('A',num2str(m),num2str(j),'.mat'),A)?

I used strcat and num2str to create a filename.

answered Apr 21, 2015 at 14:01

Ander Biguri

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