[BioC] Description of affy paper by Gautier, Irizarry, Cope and Bolstad, 2005

[James W. MacDonald]

Alvord, Greg (DMS) [Contr] wrote:

>>Data <- ReadAffy()
> 
> 
> Error in AllButCelsForReadAffy(..., filenames = filenames, widget =
> widget,  : 
> 
>         No cel filennames specified and no cel files in specified
> directory:C:/Program Files/R/R-2.2.1

This error indicates that you don't have any celfiles in your working 
directory. If you don't have any Affy data, you will not be able to do 
much with this particular vignette.

You could try some of the commands that follow this one if you first type:

data(affybatch.example)

You could then use this AffyBatch to run some of the commands in the 
vignette, such as

eset <- mas5(affybatch.example)
or
eset <- rma(affybatch.example)

etc.

HTH,

Jim

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