Gdec: Decode a Grib message

In harphub/Rgrib2: Read and work with GRIB binary files

Decode a Grib message

Description

returns the values stored in the grib record

Usage

  Gdec(x, field=1, level = NULL, levelType = "P", 
       get.meta = TRUE, multi = FALSE)

Arguments

x	An object of class "GRIBhandle", a file name or a GRIBlist, in which case field must be specified as an integer or a name. x can also be a GRIB message in raw (byte) format.
field	An integer indicating the position of the field in the file or list. Not used if x is a GRIBhandle.
level, levelType	Possibly add a level (pressure, height above surface).
get.meta	Logical key to retrieve parameter and date-time information.
multi	Setting this to TRUE turns on support for multi-field messages in GRIB2.

Details

takes an object of class "GRIBhandle" as input and returns the actual data. record can also be a filename or GRIBlist object, in which case field must be specified as an integer or a name.

Value

A data matrix with class "geofield" and attributes time, domain and description.

See Also

Gopen, Ghandle, GRIBhandle

Examples

## Not run: 
#Get first 5 records of a file.
h1 <- Ghandle('filename',5)
#decode first record
mydata <- Gdec(h1)

## End(Not run)

harphub/Rgrib2 documentation built on June 4, 2024, 7:27 a.m.