Read a MODFLOW strongly implicit procedure file

rmf_read_sip reads in a MODFLOW strongly implicit procedure file and returns it as an RMODFLOW sip object

rmf_read_sip(
  file = {     cat("Please select strongly implicit procedure file ...\n")    
    file.choose() },
  ...
)

Arguments

file	filename; typically '*_sip'
...	arguments passed to `rmfi_parse_variables`. Can be ignored when input is 'free' format.

RMODFLOW sip object