| validData-methods {xps} | R Documentation |
Extracts a subset of valid data from data.frame data.
Usage
validData(object, which = "")
object |
object of class DataTreeSet. |
which |
type of probes to be returned. |
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. |
A data.frame.
Christian Stratowa