Write a MODFLOW preconditioned conjugate-gradient package file

rmf_write_pcg(
  pcg,
  file = {    
    cat("Please select pcg file to overwrite or provide new filename ...\n")    
    file.choose() },
  ...
)

Arguments

pcg	an `RMODFLOW` pcg object
file	filename to write to; typically '*.pcg'
...	arguments passed to `rmfi_write_variables` when writing a fixed format file.

NULL