Convert an object of class generic_mspct
or a derived class into an R
matrix with wavelengths saved as an attribute and spectral data in rows or
columns.
Note
Only collections of spectra containing spectra with exactly the same
w.length
values can by converted. If needed, the spectra can be
re-expressed before attempting the conversion to a matrix.
Warning!
This conversion preserves the spectral data but discards almost all the metadata contained in the spectral objects. In other words a matrix created with this function cannot be used to recreate the original object unless the same metadata is explicitly supplied when converting the matrix into new collection of spectra.