[BioC] read.table(), then use affycoretools?

[James W. MacDonald]

Weiyin Zhou wrote:
> James,
> 
> I modified my pData.txt file, so it works now.  
> 
> It is kind weird.  I checked my "Apop_ram.txt", the column names are
> match with row names in pData.txt.  But somehow, when read.table, it
> changed "-" to ".".  And I did not even noticed at beginning.

There are certain characters that are disallowed (-, +, *, /, =, are a 
few that I know of) in the names of a data.frame. These are all 
converted to a ".", so you have to watch out for that.

Best,

Jim


> 
> Thanks a lot,
> 
> Weiyin


-- 
James W. MacDonald, M.S.
Biostatistician
Affymetrix and cDNA Microarray Core
University of Michigan Cancer Center
1500 E. Medical Center Drive
7410 CCGC
Ann Arbor MI 48109
734-647-5623


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