R/family-selmulti.R

In rcdo: Wrapper of 'CDO' Operators

## This file was created automatically, do not edit by hand.
#' Select multiple fields via GRIB1 parameters
#'
#' This module selects multiple fields from infile and writes them to outfile. selection-specification is a filename or in-place string with the selection specification. Each selection-specification has the following compact notation format:  <type>(parameters; leveltype(s); levels)  type      "    "    sel for select or del for delete (optional) parameters"    "    GRIB1 parameter code number leveltype "    "    GRIB1 level type levels    "    "    value of each level  Examples:  (1; 103; 0) (33,34; 105; 10) (11,17; 105; 2) (71,73,74,75,61,62,65,117,67,122,121,11,131,66,84,111,112; 105; 0)  The following descriptive notation can also be used for selection specification from a file:  SELECT/DELETE, PARAMETER=parameters, LEVTYPE=leveltye(s), LEVEL=levels  Examples:  SELECT, PARAMETER=1, LEVTYPE=103, LEVEL=0 SELECT, PARAMETER=33/34, LEVTYPE=105, LEVEL=10 SELECT, PARAMETER=11/17, LEVTYPE=105, LEVEL=2 SELECT, PARAMETER=71/73/74/75/61/62/65/117/67/122, LEVTYPE=105, LEVEL=0 DELETE, PARAMETER=128, LEVTYPE=109, LEVEL=*  The following will convert Pressure from Pa into hPa; Temp from Kelvin to Celsius: SELECT, PARAMETER=1, LEVTYPE= 103, LEVEL=0, SCALE=0.01 SELECT, PARAMETER=11, LEVTYPE=105, LEVEL=2, OFFSET=273.15 If SCALE and/or OFFSET are defined, then the data values are scaled as SCALE*(VALUE-OFFSET). 
#'
#' @details
#'     selmulti     Select multiple fields
#'     delmulti     Delete multiple fields
#'     changemulti  Change identication of multiple fields
#'
#' 
#'
#' @returns
#' 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.
#' @name selmulti
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