compc: Comparison of a field with a constant

In rcdo: Wrapper of 'CDO' Operators

Comparison of a field with a constant

Description

This module compares all fields of a dataset with a constant. The resulting field is a mask containing 1 if the comparison is true and 0 if not. The type of comparison depends on the chosen operator.

Usage

cdo_eqc(ifile, c = NULL, ofile = NULL)

cdo_gec(ifile, c = NULL, ofile = NULL)

cdo_gtc(ifile, c = NULL, ofile = NULL)

cdo_lec(ifile, c = NULL, ofile = NULL)

cdo_ltc(ifile, c = NULL, ofile = NULL)

cdo_nec(ifile, c = NULL, ofile = NULL)

Arguments

ifile	String with the path to the input file.
c	FLOAT - Constant
ofile	String with the path to the output file.

Details

eqc  Equal constant
               /   1   if i(t,x) EQ c     AND  i(t,x),c NE miss
     o(t,x) = <    0   if i(t,x) NE c     AND  i(t,x),c NE miss
               \\  miss if i(t,x) EQ miss  OR   c EQ miss
nec  Not equal constant
               /   1   if i(t,x) NE c     AND  i(t,x),c NE miss
     o(t,x) = <    0   if i(t,x) EQ c     AND  i(t,x),c NE miss
               \\  miss if i(t,x) EQ miss  OR   c EQ miss
lec  Less equal constant
               /   1   if i(t,x) LE c     AND  i(t,x),c NE miss
     o(t,x) = <    0   if i(t,x) GT c     AND  i(t,x),c NE miss
               \\  miss if i(t,x) EQ miss  OR   c EQ miss
ltc  Less than constant
               /   1   if i(t,x) LT c     AND  i(t,x),c NE miss
     o(t,x) = <    0   if i(t,x) GE c     AND  i(t,x),c NE miss
               \\  miss if i(t,x) EQ miss  OR   c EQ miss
gec  Greater equal constant
               /   1   if i(t,x) GE c     AND  i(t,x),c NE miss
     o(t,x) = <    0   if i(t,x) LT c     AND  i(t,x),c NE miss
               \\  miss if i(t,x) EQ miss  OR   c EQ miss
gtc  Greater than constant
               /   1   if i(t,x) GT c     AND  i(t,x),c NE miss
     o(t,x) = <    0   if i(t,x) LE c     AND  i(t,x),c NE miss
               \\  miss if i(t,x) EQ miss  OR   c EQ miss

Value

Operators that output one or more files return a character vector to the output files.

Operators that output an indefinite number of files return a string with the basename of the files.

Operatos that don't return filenames return a character vector with the string output.

rcdo documentation built on June 8, 2025, 12:36 p.m.