getBiexpTransformGS     Applies Biexpeonential Transformation using
                        specifications in csv file provided at
                        'path_biexp_params'
getCompGS               Applies Compensation using specifications in
                        csv file provided at 'path_comp_mat'
getDensityGates         Density gating of intensity values in 'marker'
                        for each unique subset of 'subset_col'
getGatedDat             Attach indicator columns to 'intens_dat' based
                        on gates provided in 'cutoffs'
getPerc                 Calculate the percentage of positive cells for
                        specific subpopulations
