Description Usage Arguments Value Methods Author(s) Examples
Either retrieves the wavelengths from a Spectra*
object, or creates a
Spectra*
object from a "data.frame"
object by setting some of
its columns as the wavelengths. The "ids<-"
method for
SpectraDataFrame
objects allows to use a formula interface to use a
column in its data
slot as the object IDs (see the last example provided
in the Examples section).
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object |
an object of class |
... |
|
value |
character vector for new IDs |
The ids
methods return a vector if as.vector
is TRUE,
a data.frame
otherwise. The "ids<-"
method return a
SpectraDataFrame
object (or a Spectra
object if the column in
the data slot that has been used to initiate the IDs was the only
attribute).
ids(object, ..., as.vector = TRUE)
ids(object) <- value
Pierre Roudier pierre.roudier@gmail.com
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