Error using fopen

Hi,

I'm using the following command in a for-loop:

imwrite(x,strcat('L_',num2str(c),'_m.bmp'),'bmp');

And, getting the following error:

Error using fopen
File name must be a vector of type char.

Error in imwrite (line 453)
fid = fopen(filename, 'a');

Error in fuzzycmeans (line 83)
imwrite(x,strcat('L_',num2str(c),'_m.bmp'),'bmp');

Why is that? How can I fix this issue?

Thanks.

Answer 1

[Star Strider]

As a troubleshooting step, run this line:

flnm = strcat('L_',num2str(c),'_m.bmp')

just before your imwrite call and see what the result is.

[med-sweng]

Thanks for your reply. Sorry, still the same issue.

[Star Strider]

What does ‘flnm’ produce? Is it ‘a vector of type char’?

If you do:

cn = class(flnm)

what is the result?