R help - Oct 2004 - Error in grep

Hi, there. 
I used the  function read.maimages in limma package to analyze the microarray
data .but I got following message 
>RG <- read.maimages(targets$FileName, source="spot")
Error in grep(pattern, x, ignore.case, extended, value, fixed) : 
        invalid argument
I don't know what is the matter 
Thanks a lot
Regards
Shizhu Zang 
Department of Biochemsitry 
Peking UniversityBeijing 
China










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On Tue, 19 Oct 2004, shizhu zang wrote:
> I used the function read.maimages in limma package to analyze the
> microarray data .but I got following message
> >RG <- read.maimages(targets$FileName, source="spot")
> Error in grep(pattern, x, ignore.case, extended, value, fixed) : 
>         invalid argument
> I don't know what is the matter 
It's an error from the limma package, not in grep (which is reporting that
it is being used incorrectly).  Please quote accurately.

It could be an error in your usage of limma, or in the package itself, but 
in either case you need to discuss it with the package maintainer in the 
first instance.


-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595