Select feature variables of interest
Select feature variables to be retained.
requiredFvarLabels returns a character vector with the
required feature data variable names (fvarLabels, i.e. the column
names in the fData data.frame) for the specified object.
selectFeatureData(object, graphics = TRUE, fcol)
requiredFvarLabels(x = c("OnDiskMSnExp", "MSnExp", "MSnSet"))object |
An |
graphics |
A |
fcol |
A |
x |
|
For selectFeatureData: updated object containing only
selected feature variables.
For requiredFvarLabels: character with the required feature
variable names.
Laurent Gatto
library("pRolocdata")
data(hyperLOPIT2015)
## 5 first feature variables
x <- selectFeatureData(hyperLOPIT2015, fcol = 1:5)
fvarLabels(x)
## Not run:
## select via GUI
x <- selectFeatureData(hyperLOPIT2015)
fvarLabels(x)
## End(Not run)
## Subset the feature data of an OnDiskMSnExp object to the minimal
## required columns
f <- system.file("microtofq/MM14.mzML", package = "msdata")
od <- readMSData(f, mode = "onDisk")
## what columns do we have?
fvarLabels(od)
## Reduce the feature data data.frame to the required columns only
od <- selectFeatureData(od, fcol = requiredFvarLabels(class(od)))
fvarLabels(od)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.