ncol
returns the number of columns in x@data
. I.e. the number
of columns with additional information to each spectrum (e.g. "x", "y",
…) + 1 (for column spc
containing the spectra).
nrow
yields the number of rows in x@data
, i.e. the number of
spectra in the hyperSpec
object.
nwl
returns the number of columns in x@data$spc
, i.e. the
length of each spectrum.
dim
returns all three values in a vector.
length
is a synonym for nrow
. It is supplied so that
seq_along (x)
returns a sequence to index each spectrum.