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