LCF_solve_QP            Linear combination fitting solve function
LC_fit                  Linear combination fitting function
bkg_corr                Background correction function
fit_athena              Porting of 'ATHENA' linear combination fitting
fit_float               Central fitting function with float environment
initial_load            Initial loading of spectra
plot_LCF                Plot sample data, linear combination fit and
                        residual spectrum
read_raw_spec           Read raw spectra
specdat                 Phosphorus K-edge XANES spectral data for LCF
std_df                  Create a data frame of all standards
