Writing 3D data into text files

I want to write my 3D data in separate text files, my data matrix has dimensions = 8x256x32. I want to write 8 separate files, all having 256x32 data values. how can I do this? Kindly help me with the following code:

[a,b,c]=size(sig);
for x = 1:8
    filename = ['signal' num2str(x) '.txt'];
    for y = 1:256
        for z = 1:32
            dlmwrite(filename,sig(x,:,:),'delimiter','\t')
        end
    end
    fclose(filename);
end

thank you.

[KSSV]

When you write this matrix 256X32, data will be disturbed from 8X256 matrix.....is it okay?

[Stephen23]

You provide a 3D array to dlmwrite, with size 1x256x32. You need to provide a matrix.

[Nabigha Nazneen]

@KSSV, I want to write 8 separate files of 256x32 data matrix. @Stephen Cobeldick, how can I pass a matrix when I have 3D data, do I need to squeeze the data first and later write the file?

[KSSV]

I suggest you to write whole data 8x256x32 into single file......there are formats which support this.

[Nabigha Nazneen]

I need these file to be ported to visual C, I need them as this. I don't need single file. thanks for assistance

Answer 1

[Jan]

You are talking about 65536 numbers. Text files are useful, if they are read or edited by a human, but nobody will read and understand such a pile of values.

Therefore it would be easier, faster and cleaner to store the values in a binary format using fwrite. This will allow for an easier method to import the data later on also.

[Nabigha Nazneen]

okay, I try writing text files for later use.