elphick.mass_composition.utils.pd_utils.mass_to_composition
- elphick.mass_composition.utils.pd_utils.mass_to_composition(df, mass_wet='mass_wet', mass_dry='mass_dry')[source]
Convert a mass DataFrame to composition
- Parameters:
df (
DataFrame
) – The pd.DataFrame containing mass. H2O if provided will be ignored. All columns other than the mass_wet and mass_dry are assumed to be additive, that is, dry mass weighting is valid. Assumes composition is in %w/w units.mass_wet (
str
) – The wet mass column, not optional. Consider solve_mass_moisture prior to this call if needed.mass_dry (
str
) – The dry mass column, not optional. Consider solve_mass_moisture prior to this call if needed.
- Return type:
DataFrame
- Returns:
A pd.Dataframe containing mass (wet and dry mass) and composition