save txt file in loop

a1=magic(2);

a2=magic(3);

a3=magic(4);

if i assume a1 a2 a3 and i want to save them to txt file Individually how to write it in loop .

like this a1.txt a2.txt a3.txt

i really need help because i have 50s need to save .it too huge.!!

for i=1:3 save end

[Stephen23]

Whatever you do, do not try to create fifty dynamically named variables! This is a bad programming practice, and should be avoided.

Here is an explanation of why dynamically named variables is a poor programming practice:

http://www.mathworks.com/matlabcentral/answers/196952-how-to-create-new-variables-in-batches-with-strcat

Answer 1

[Jan]

Avoid hiding an index in the name of the variables. Then the solution is easy:

a = cell(1, 3);
a{1} = magic(2);
a{2} = magic(3);
a{3} = magic(4);

for ia = 1:numel(a)
  save(sprintf('File%d.mat'm ia), a{ia});
end

[tony kevine]

tks!!

Answer 2

[Chris McComb]

You could do something like this using the dlmwrite function:

for i=1:1:50
    dlmwrite(sprintf('%d.txt', i), magic(i));
end

This will save the first 50 magic matrices to text files named 1.txt, 2.txt, 3.txt, etc.

[tony kevine]

tks!!

Answer 3

[tony kevine]

thanks so much!!