matrix_histogram::get_species

Source: stream/matrix/Histogram/matrix_histogram__get_species.pro

 matrix_histogram::get_species
        Return the species name or number for matrix histogram

 Usage:
        species=histref -> get_species()

 Keyword:
        index   If set then return the species number rather than its
                name. 

 History:
        Original: 10/8/00; SJT