[BioC] magetab2bioc error

[Wolfgang Huber]

Dear Pratibha Mani

thank you for the feedback. I think you will increase your chance of 
getting help if you ask a more specific question. Please provide a 
reproducible example (R code) that produces your problem, and an exact 
description (error message?) of what you think the problem is. Also, 
sessionInfo().

You mention that you want to manipulate some column(s) in the array 
metadata. Are you sure you are familiar enough with R and with the 
ExpressionSet class defined in the Biobase package to conclude that you 
cannot easily do this in R?

	Best wishes
	Wolfgang

pratibha mani scripsit 24/03/11 07:42:
> Dear All,
>
> I have my files downloaded from Arrayexpress say (E-GEOD-6728). Because it
> is large in size, I donot want to download it everytime I want to work with
> the data. My main problem is that I cannot use the load() function as it
> uses the Bioconductor object generated while downloading from http directly.
>
> I want to edit one of the columns in the SDRF file which will make it easier
> for me to identify case and control samples. I cannot edit the object as it
> is in binary format. Can anyone please help as whenver I use magetab2bioc()
> it gives me an error while using my local files stored?
>
> Thanks in advance.
>
> 	[[alternative HTML version deleted]]
>
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-- 


Wolfgang Huber
EMBL
http://www.embl.de/research/units/genome_biology/huber