fldcovar: Covariance in grid space

In rcdo: Wrapper of 'CDO' Operators

Covariance in grid space

Description

This operator calculates the covariance of two fields over all gridpoints for each timestep. With S(t) = {x, i_1(t,x) != missval and i_2(t,x) != missval} it is o(t,1) = Covar{(i_1(t,x), i_2(t,x)), x_1 < x <= x_n} where w(x) are the area weights obtained by the input streams. For every timestep t only those field elements x belong to the sample, which have i_1(t,x) != missval and i_2(t,x) != missval.

Usage

cdo_fldcovar(ifile1, ifile2, ofile = NULL)

Arguments

ifile1, ifile2	Strings with the path to the input files.
ofile	String with the path to the output file.

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.