[BioC] Creating an object of class exprSet

Ting-Yuan Liu tliu at fhcrc.org
Wed Nov 16 20:06:38 CET 2005


Hi Sohail,

The package "Biobase" provides a vignette which demonstrates how to create 
an exprSet.  You can find it here:
http://www.bioconductor.org/repository/devel/vignette/Biobase.pdf

HTH,
Ting-Yuan
______________________________________
Ting-Yuan Liu
Program in Computational Biology
Division of Public Health Sciences
Fred Hutchinson Cancer Research Center
Seattle, WA, USA
______________________________________
We should live by the second, as each second is a critical period to pass 
through. ---Master Cheng Yen

On Tue, 15 Nov 2005, Khan, Sohail wrote:

> Dear List,
>  
> I am trying to create an exprSet object from a tab delimited file where first column contains the gene names and remaining 14 columns contain the expression data.  I am using the function read.exprSet() to read the file.  However, when I look at pData(), I see that the gene name columns is listed as the sample.  How can creat an exprSet object correctly?  Thanks in advance.
>  
> -Sohail
> 
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