get.array.subset.affy: Get a subset of arrays from an affybatch object, split by...
In simpleaffy: Very simple high level analysis of Affymetrix data

Description Usage Arguments Details Value Author(s) Examples

Looks at a factor in the phenotypic data for an AffyBatch or ExpressionSet object and uses it to select a subset of arrays, as defined by 'members'.

1 2	get.array.subset.affybatch(x, group, members) get.array.subset.exprset(x, group, members)

`x`	An `AffyBatch` or `ExpressionSet` object.
`group`	The name of the pData column to use.
`members`	The labels within the pData column to match against.

Subsetting an AffyBatch object by array is achieved using [x,], while the same is achieved for an ExpressionSet by [,x]. Hence the two different functions. In general the generic method get.array.subset should be used - since it sorts this all out automatically.

An AffyBatch or ExpressionSet (as appropriate) containing the selected subset of chips.

Crispin J Miller

  ## Not run: 
    subset1 <- get.array.subset.affybatch(eset.rma,"group","A")
    subset2 <- get.array.subset.exprset(eset.rma,"group",c("A","P"))
    subset3 <- get.array.subset(eset.rma,"group","A")
  
## End(Not run)