[BioC] split.AffyBatch

James MacDonald jmacdon at med.umich.edu
Thu Jul 22 17:24:54 CEST 2004

Ah, how stupid of me. I got confused looking at the help for split,
which is designed to split *vectors* on a factor, hence my thinking that
you were splitting on rows rather than columns.

As an aside, given that there is already subsetting of an AffyBatch
using the '[' operator, is split.AffyBatch simply designed to allow
subsetting based e.g., on something in the phenoData slot, or is there
another rationale?



James MacDonald wrote:
> split.AffyBatch() is not designed to split AffyBatches in the manner
> want. Instead, it is designed to split on rows, based on a certain
> factor (e.g., it is working as designed).

I think I designed split.AffyBatch to split on columns (and 
seems to confirm that).

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

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