iwfm.hyd_diff¶ iwfm.hyd_diff(gwhyd_file_1, gwhyd_file_2, outname)[source]¶ Subtract the values in one hydrograph file from another. Parameters: gwhyd_file_1 (str) – name of IWFM hydrograph file to subtract from gwhyd_file_2 (str) – name of IWFM hydrograph file to subtract outname (str) – output file base name Return type: nothing