Write the content of individual cells in a cell array to discrete text files in a specified directory

1 view (last 30 days)
I have an nx1 cell array, M, containing 4x4 matrices in individual cells. For example:
M{1} =
0.9990 -0.0007 0.0010 0.0013
-0.0007 0.9999 -0.0001 0.0509
0.0010 -0.0001 0.9996 -0.0343
0 0 0 1.0000
I need to write the contents of each individual cell to a discrete text file with sequential names and a .dat extension (e.g. cam1.dat, cam2.dat etc) to a specified folder created previously:
mkdir('C:\transform', 'cameras1');
I can make a single file in the desired format using:
filename = 'C:\transform\cameras1\cams.dat';
fid = fopen(filename,'w');
fprintf(fid,'%-.8e %-.8e %-.8e %-.8e\r\n', transpose(M{1}));
But am unsure how to excecute this code iteratively for the entire contents of M.
Any help would be greatly appreciated.

Accepted Answer

Thomas on 20 Dec 2012
Thanks Jan
I have managed to get the code working using:
for k=1:size(M,1)
filename = ['C:\transform\cameras1\' 'cams' num2str(k) '.dat'];
fid = fopen(filename,'w');
fprintf(fid,'%-.8e %-.8e %-.8e %-.8e\r\n', transpose(M{k}));
The FAQ document was most useful. I will try to refer to it first in the future. I'm not sure of the etiquatte for accepting answers in this instance (feel free to advise): thank you nevertheless.
p.s. my 3 year old likes your avatar!

More Answers (1)

Jan on 20 Dec 2012
  1 Comment
Jan on 20 Dec 2012
Dear Walter, I've explained 1 minute ago, that I do not post links to the FAQ anymore. But every rule has to be broken from time to time.

Sign in to comment.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!