Michael Barton wrote: > >> 1. Is there any speed advantage/disadvantage to using r.mfilter over > >> r.neighbors? At the moment, because we are trying to get rid of occasional > >> spikes, I don't think that a weighted mean will give better results than an > >> unweighted mean. But the only way to get functions like a weighted mean is > >> to use r.mfilter, so it would be good to know if there are any known > >> performance hits or if it is faster. > > > > r.mfilter currently works with integers. AFAICT, there's no > > fundamental reason why it can't be upgraded to FP. > > Then, as is it won't work for us. If it can be upgraded to integers we can > try it.
I've added an FP version, r.mfilter.fp. I didn't modify r.mfilter as it turns out that there is some behaviour which is specific to integer maps, and to the zero-is-null behaviour of 4.x. It wasn't practical to add support for FP and null values without breaking compatibility. -- Glynn Clements <[EMAIL PROTECTED]> _______________________________________________ grass-dev mailing list [email protected] http://grass.itc.it/mailman/listinfo/grass-dev
