var.MAData: Variance for microarray data
In HenrikBengtsson/aroma: An R Object-oriented Microarray Analysis package

Description Usage Arguments Value Author(s) See Also Examples

Computes the variance across all slides for each spot.

1 2	## S3 method for class 'MAData' var(this, inf.rm=TRUE, na.rm=TRUE, ...)

`inf.rm`	a logical value indicating whether `Inf` values should be stripped before the computation proceeds.
`na.rm`	a logical value indicating whether `NA` values should be stripped before the computation proceeds.
`...`	other arguments to `var`, e.g. `trim`.

Returns a matrix with the columns varM and varA.

Henrik Bengtsson (http://www.braju.com/R/)

*mean(). For more information see MAData.

  # The option 'dataset' is used to annotate plots.
  options(dataset="sma:MouseArray")

  SMA$loadData("mouse.data")
  layout <- Layout$read("MouseArray.Layout.dat", path=system.file("data-ex", package="aroma"))
  raw <- RawData(mouse.data, layout=layout)
  ma <- getSignal(raw, bgSubtract=TRUE)
  var <- ma$var()