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From: Matt on 4 Jun 2010 10:25
Hi,

I'm trying to write an 'if' statement that skips out a certain file with 'eng' contained within the file name during a loop processing a series of files with different names.

I basically want it to say: if 'eng' is part of the filename then do not conduct the process for that file...

I assume 'continue' will do this but I don't know how to tell Matlab to look for 'eng' in the file name.

Sorry I'm not the best at explaining! Hope it makes sense.

Thanks!
From: Walter Roberson on 4 Jun 2010 10:30
Matt wrote:

> I'm trying to write an 'if' statement that skips out a certain file with
> 'eng' contained within the file name during a loop processing a series
> of files with different names.
> I basically want it to say: if 'eng' is part of the filename then do
> not conduct the process for that file...
>
> I assume 'continue' will do this but I don't know how to tell Matlab to
> look for 'eng' in the file name.

See strmatch()
From: ImageAnalyst on 4 Jun 2010 10:59
Matt:
I'd use strfind(). If it is not empty upon returning, the substring
is in there

filename = '1234.png'
index1 = strmatch(filename, 'eng')
index2 = strfind(filename, 'eng')
if ~isempty(index2)
message = sprintf('eng is at index %d in the string %s', index2,
filename);
else
message = sprintf('eng is not in the string %s', filename);
end
uiwait(msgbox(message));

filename = '123_eng_9.png'
index1 = strmatch(filename, 'eng')
index2 = strfind(filename, 'eng')

if ~isempty(index2)
message = sprintf('eng is at index %d in the string %s', index2,
filename);
else
message = sprintf('eng is not in the string %s', filename);
end
uiwait(msgbox(message));


Results:

filename =
1234.png

index1 =
[]

index2 =
[]


filename =
123_eng_9.png

index1 =
[]

index2 =
5
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