exportMetaboAnalyst {xcms} | R Documentation |
Export data for use in MetaboAnalyst
Description
Export the feature table for further analysis in the MetaboAnalyst
software (or the MetaboAnalystR
R package).
Usage
exportMetaboAnalyst(
x,
file = NULL,
label,
value = "into",
digits = NULL,
groupnames = FALSE,
...
)
Arguments
x |
XCMSnExp object with identified chromatographic peaks grouped
across samples.
|
file |
character(1) defining the file name. If not specified, the
matrix with the content is returned.
|
label |
either character(1) specifying the phenodata column in x
defining the sample grouping or a vector with the same length than
samples in x defining the group assignment of the samples.
|
value |
character(1) specifying the value to be returned for each
feature. See featureValues() for more details.
|
digits |
integer(1) defining the number of significant digits to be
used for numeric. The default NULL uses getOption("digits") . See
format() for more information.
|
groupnames |
logical(1) whether row names of the resulting matrix
should be the feature IDs (groupnames = FALSE ; default) or IDs that
are composed of the m/z and retention time of the features (in the
format M<m/z>T<rt> (groupnames = TRUE ). See help of the groupnames
function for details.
|
... |
additional parameters to be passed to the featureValues()
function.
|
Value
If file
is not specified, the function returns the matrix
in
the format supported by MetaboAnalyst.
Author(s)
Johannes Rainer
[Package
xcms version 3.16.0
Index]