vza_mean_and_var_rasters {gaiah} | R Documentation |
calculate a raster of mean and variance of expected tissue isotopes from precip data and resampled regressions
Description
This is a rewrite of the function raster.conversion
from the Vander Zanden
appendix. They expressed things in terms of the standard deviations, but they need to
be turned into variances, anyway, so that is what we've done here. Following the notation
of the paper on Wilson's warbler, this function computes $tildeT^(mu)$ (returned as
list component mean.raster
) and $R^(sigma^2)$ (returned as list component
var.raster
)
Usage
vza_mean_and_var_rasters(iso_raster, si)
Arguments
iso_raster |
the raster of isotope precipitation values, for example, like that
produced by |
si |
slopes and intercepts from the resampled regressions. This is a data frame
with columns named "slopes" and "intercepts" like that returned by |
[Package gaiah version 0.0.5 Index]