Get and set labels of a
numeric or character to specify the label(s)
if the result would be a list with only one element, should the element be returned instead?
should missing labels be replaced by column names of the extra data?
the new label(s)
labels returns a list of labels. If
TRUE and the list contains only one element, the element is
labels<- returns a
value may be a list or vector of labels giving the new label for
each of the entries specified by
The names of the labels are the same as the colnames of the
data.frame. The label for the wavelength axis has the name
The labels should be given in a form ready for the text-drawing functions
grDevices::plotmath()), e.g. as
expression or a