[GRASS-user] delete, drop rows in table

GRASS GRASS user
1

Stefanie Obmann wrote:

I want to exclude all NULL values (999.99) from my temperature
column to do the v.surf.idw command.

I don’t know where to set a WHERE clause that
the calculation just takes the real values (except 999.99).

try using v.extract to do the WHERE clause first.

Hamish