On Wed, 30 Jul 2008, Sven Schreiber wrote:
 well sorry, here comes another:
 
 ? mwrite(results800er,"results800er.mat")
 
 produces a file w/o extension ("results800er"), but 
 
 ? mwrite(results800er,"results800er.huhu")
 
 preserves the entire string, as I intended. At first I thought 
 it was because windows might not show known file extensions, but 
 I always have that option off and I just checked it's still off. 
 So somehow gretl seems to eat the ".mat" part. 
I don't believe it!  For all your efforts, I still think Windows 
is not showing you the true name of the file.
Allin.