Unsupervised Imagery Classification in GRASS 8 

Hello, where can I download the data to practice your tutorials? Can you share the link, please? thank you.

Can you please help me debug a grass 7.8.6 problem?? I am trying to use raster map calculator. The expression is Beerslaw= (Landuse_Final@PERMANENT.recode.mode == 42)*0.46 ... Landuse_Final have category 42. It gives me Invalid map Parse error ERROR: parse error If I provide space i.e. Beerslaw= (Landuse_Final@PERMANENT .recode .mode == 42)*0.46 it gives me syntax error Parse error ERROR: parse error It will be very nice of you if you can help .