Last data update: 2014.03.03
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R: Accessors for PM, MM or background probes indices.
Accessors for PM, MM or background probes indices.
Description
Extracts the indexes for PM, MM or background probes.
Usage
mmindex(object, ...)
pmindex(object, ...)
bgindex(object, ...)
Arguments
object |
FeatureSet or DBPDInfo object
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... |
Extra arguments, not yet implemented
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Details
The indices are ordered by 'fid', i.e. they follow the order that the
probes appear in the CEL/XYS files.
Value
A vector of integers representing the rows of the intensity matrix
that correspond to PM, MM or background probes.
Examples
## How pm() works
## Not run:
x <- read.celfiles(list.celfiles())
pms0 <- pm(x)
pmi <- pmindex(x)
pms1 <- exprs(x)[pmi,]
identical(pms0, pms1)
## End(Not run)
Results
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