ppm2oxide {GCDkit} | R Documentation |
Recasts concentrations of a cation (in ppm) to those of the selected oxide (in wt %).
ppm2oxide(formula,where="WR")
formula |
character: the oxide which is to be recalculated |
where |
character: a name of matrix or dataframe with the data to be recalculated |
A numeric matrix with one column containing the recalculated concentrations of the given oxide (in wt %) for individual samples.
Vojtěch Janoušek, vojtech.janousek@geology.cz
oxide2ppm
, oxide2oxide
, molecularWeight
data(sazava) accessVar("sazava") print(WR[,c("K2O","K")]) ppm2oxide("K2O") # Calculates K2O (in wt %) from K (in ppm) oxide2ppm("K2O") # And vice versa