validData-methods {xps}R Documentation

Extract Subset of Data

Description

Extracts a subset of valid data from data.frame data.

Usage

validData(object, which = "")

Arguments

object object of class DataTreeSet.
which type of probes to be returned.

Details

For expression arrays, validData returns all the perfect match or mismatch probes on the arrays the object represents as data.frame, i.e. which can have the following values:
pm: perfect match probes.
mm: mismatch probes.
both: both perfect match and mismatch probes.

For exon arrays, validData returns the probes of the different exon levels as data.frame, i.e. which can have one of the following values:
core: probesets supported by RefSeq and full-length GenBank transcripts.
metacore: core meta-probesets.
extended: probesets with other cDNA support.
metaextended: extended meta-probesets.
full: probesets supported by gene predictions only.
metafull: full meta-probesets.
affx: standard AFFX controls.
all: combination of above.
genomic: genomic background probes.
antigenomic: antigenomic background probes.

Value

A data.frame.

Author(s)

Christian Stratowa

See Also

pm, mm


[Package xps version 1.2.10 Index]