wgrib2: -undefine_val
Introduction
The -undefine_val option sets the selected the
decoded grid values to undefined. The grid points have to have a value
that matches the prescribed value within 0.1 percent.
Usage
-undefine_val value
value: number
Example
$ wgrib2 test.grb2 -undefine_val -999.9
All the grid points that have a value within 0.1 percent of -999.9
are set to undefined.
See also:
-undefine,
-ijundefine,
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