fractionation {ArArRedux} | R Documentation |
Compares the measured 40Ar/36Ar ratio of an air shot on a given detector with the atmospheric ratio.
fractionation(fname, detector, MS = "ARGUS-VI", PH = FALSE)
fname |
a .csv file with the air shot data |
detector |
the name of the ion detector |
MS |
the type of mass spectrometer |
PH |
TRUE if the data were recorded in 'peak hopping' mode, FALSE if recorded in multicollector mode. |
an object of class logratios
data(Melbourne) fd37file <- system.file("AirL2.csv",package="ArArRedux") fd40file <- system.file("AirH1.csv",package="ArArRedux") fract <- list(fractionation(fd37file,"L2",PH=TRUE), fractionation(fd40file,"H1",PH=FALSE)) if (isTRUE(all.equal(Melbourne$fract,fract))){ print("We just re-created the fractionation correction for the Melbourne dataset") }