[GRASS-user] Re: Command to summarize the frequency distribution table

[Moritz Lennert]

On 16/12/08 14:40, SGW00412 at nifty.com wrote:
> Dear Moritz:
> 
> I wish to express my gratitude for your valuable advice. Thank you. 
> It succeeded when having tried as follows:
> 
> 0 thru 100=1 0-100m
> 100 thru 200=2 100-200m
> 200 thru 300=3 200-300m
> 300 thru 400=4 300-400m
> ....
> end
> 
> save as alt_class.txt
> 
> r.reclass input=old_rast_map output=new_rast_map < alt_class.txt
> 
> r.stats new_rast_map -c


Note that you could have also done something similar with

r.report map=old_rast_map units=k nsteps=

playing around with nsteps to get the same ranges. But r.reclass + 
r.stats/r.report gives you more precise control of your classes.

Moritz