If tmin or tmax are requested but tmp or dtr are not requested, this
function drops the unrequested vars.
Usage
.drop_source_vars_dt(dt, vars)
Arguments
- dt
A data.table object of CRU data containing tmp and dtr in order
to calculate tmin and tmax.
- vars
A named logical vector.
Value
A data.table with the unrequested var columns removed.
