| mwl {isoWater} | R Documentation |
Mwl Object
Description
Creates objects of type "mwl" containing statistics for a meteoric water line in H and O isotope space.
Usage
mwl(HO, plot = TRUE)
Arguments
HO |
data.frame. Hydrogen (column 1) and oxygen (column 2) isotope values for 3 or more water samples. |
plot |
logical. Plot the data, MWL, and standard error of prediction? |
Details
mwl will return an error if fewer than 3 sample values are provided and a warning if fewer than 10 samples are provided or if the correlation coefficient between H and O values is less than 0.7. Sample values should span a broad enough range of isotope values to strongly constrain the MWL.
Model II (reduced major axis) regression is used to accommodate errors on both isotope values.
Value
Returns an object of class “mwl”, a numeric vector containing meteoric water line statistics. See mwlSource.
Examples
O = runif(10, -15, -2)
H = O * 8 + 10 + rnorm(10, 0, 6)
MWL = mwl(data.frame(H, O))
str(MWL)