Hello Charlotte,
Let's say the GridValue of kurz = 1, mittel = 2 and lang = 3
Then, in Raster Calculator,
For Kurz raster dataset,
("value" = 1)
For mittel raster dataset,
("value" = 2)
For lang raster dataset,
("value" = 3)
N.B.: The above expressions should be written in 3 different instances, NOT as a single expression.
Let us know if your requirement is different.
Think Location