mettoolbox.indices.spei

mettoolbox.indices.spei(rainfall, pet, source_units, nsmallest=None, nlargest=None, groupby='M', fit_type='lmom', dist_type='gam', scale=1, start_date=None, end_date=None, dropna='no', clean=False, round_index=None, skiprows=None, index_type='datetime')