Skip to contents

Open a Grib file

Gopen.Rd

Reads the basic information of a Grib file (not the data itself).

Usage

Gopen(filename, IntPar = c(), 
    DblPar = c(), StrPar = c(),
    multi = FALSE, lextra=TRUE)

Arguments

filename

A character string pointing at a GRIB file.

IntPar,DblPar,StrPar

The list of additional keys (besides the mandatory ones) to be read for all records in the file.

multi

If TRUE, multi-field messages are allowed.

lextra

If TRUE, the GRIB-1 records not recognized by grib_api are matched to an internal table with some extra table2 versions.

Value

a data.frame of class GRIBlist, containing the basic information of the data in the file. The default keys that are read for every GRIB record are

IntPar_main = c("editionNumber", "dataDate", "dataTime", "validityDate", "validityTime", "Nx", "Ny", "table2Version", "indicatorOfParameter", "parameterCategory", "parameterNumber", "lavelType", "level"), DblPar = c(), StrPar = c("shortName", "gridType")

See also

Ginfo, Gdec, iview

Examples

if (FALSE) {
#Get first 5 records of a file.
mylist <- Gopen('filename')
#one grib record:
mylist[1,]
Gdec(mylist,1)
}