Pack data

Packing reduces the data volume by reducing the precision of the stored numbers. It is implemented using the NetCDF attributes add_offset and scale_factor. The operator pack calculates the attributes add_offset and scale_factor for all variables. The default data type for all variables is automatically changed to 16-bit integer. Use the CDO option -b to change the data type to a different integer precision, if needed. Missing values are automatically transformed to the current data type. Alternatively, the pack parameters add_offset and scale_factor can be read from a file for each variable.

Usage

cdo_pack(ifile, printparam = NULL, filename = NULL, ofile = NULL)

Arguments

ifile

String with the path to the input file.

printparam

BOOL - Print pack parameters to stdout for each variable

filename

STRING - Read pack parameters from file for each variable[format: name=<> add_offset=<> scale_factor=<>]

ofile

String with the path to the output file.