Retrieve or set the specnames of a colorSpec object. Retrieve the number of spectra.
# S3 method for colorSpec
specnames(x)# S3 method for colorSpec
specnames(x) <- value
# S3 method for colorSpec
numSpectra(x)
specnames() returns a character vector with the names of the spectra.
numSpectra(x) is equal to length(specnames(x)) but much more efficient.
a colorSpec R object
a character vector with length equal to the number of spectra in x.
If the organization of x is "vector" then x is a vector
and value is a single string, which is stored as attr(x,'specname').
If the organization of x is "matrix", then x is a matrix
and value is stored as colnames(x).
If the organization of x is "df.col", then x is a data.frame
with N+1 columns, where N is the number of spectra.
value is stored as colnames(x)[2:(N+1)].
If the organization of x is "df.row", then x is a data.frame
and value is stored as row.names(x).