merstat: Meridional statistics

In rcdo: Wrapper of 'CDO' Operators

Meridional statistics

Description

This module computes meridional statistical values of the input fields. Depending on the chosen operator, the meridional minimum, maximum, range, sum, average, standard deviation, variance, skewness, kurtosis, median or a certain percentile of the field is written to outfile. Operators of this module require all variables on the same regular lon/lat grid.

Usage

cdo_meravg(ifile, p = NULL, ofile = NULL)

cdo_merkurt(ifile, p = NULL, ofile = NULL)

cdo_mermax(ifile, p = NULL, ofile = NULL)

cdo_mermean(ifile, p = NULL, ofile = NULL)

cdo_mermedian(ifile, p = NULL, ofile = NULL)

cdo_mermin(ifile, p = NULL, ofile = NULL)

cdo_merpctl(ifile, p = NULL, ofile = NULL)

cdo_merrange(ifile, p = NULL, ofile = NULL)

cdo_merskew(ifile, p = NULL, ofile = NULL)

cdo_merstd(ifile, p = NULL, ofile = NULL)

cdo_merstd1(ifile, p = NULL, ofile = NULL)

cdo_mersum(ifile, p = NULL, ofile = NULL)

cdo_mervar(ifile, p = NULL, ofile = NULL)

cdo_mervar1(ifile, p = NULL, ofile = NULL)

Arguments

ifile	String with the path to the input file.
p	FLOAT - Percentile number in {0, ..., 100}
ofile	String with the path to the output file.

Details

mermin     Meridional minimum
           For every longitude the minimum over all latitudes is computed.
mermax     Meridional maximum
           For every longitude the maximum over all latitudes is computed.
merrange   Meridional range
           For every longitude the range over all latitudes is computed.
mersum     Meridional sum
           For every longitude the sum over all latitudes is computed.
mermean    Meridional mean
           For every longitude the area weighted mean over all latitudes is computed.
meravg     Meridional average
           For every longitude the area weighted average over all latitudes is computed.
merstd     Meridional standard deviation
           For every longitude the standard deviation over all latitudes is computed. Normalize by n.
merstd1    Meridional standard deviation (n-1)
           For every longitude the standard deviation over all latitudes is computed. Normalize by (n-1).
mervar     Meridional variance
           For every longitude the variance over all latitudes is computed. Normalize by n.
mervar1    Meridional variance (n-1)
           For every longitude the variance over all latitudes is computed. Normalize by (n-1).
merskew    Meridional skewness
           For every longitude the skewness over all latitudes is computed.
merkurt    Meridional kurtosis
           For every longitude the kurtosis over all latitudes is computed.
mermedian  Meridional median
           For every longitude the median over all latitudes is computed.
merpctl    Meridional percentiles
           For every longitude the pth percentile over all latitudes is computed.

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.