[[,ncdfFlowSet,ANY-method | R Documentation |
flowFrame
object from ncdfFlowSet
Simliar to [[
, and there are cerntain ways to
reduce the disk IO and optimize the speed.
## S4 method for signature 'ncdfFlowSet,ANY' x[[i, j, use.exprs = TRUE, ...]] ## S4 method for signature 'ncdfFlowList,numeric' x[[i, j, ...]] ## S4 method for signature 'ncdfFlowList,logical' x[[i, j, ...]] ## S4 method for signature 'ncdfFlowList,character' x[[i, j, ...]]
x |
a |
i |
a |
j |
a |
use.exprs |
a |
... |
other arguments. not used. |
data(GvHD) nc <- ncdfFlowSet(GvHD[1:2]) samples <- sampleNames(nc) sn <- samples[1] #return the entire flowFrame fr <- nc[[sn]] #access the flowFrame meta data without loading the raw event data from disk nc[[sn, use.exprs = FALSE]] #only read a subset of channels (more efficient than reading entire data set) nc[[sn, 1:2]]
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