Just one question: is it possible to "count" number of cells with a certain value (or nulls) from one scale that are being used to calculate each value pixel of the target scale? Thanks
2011/6/22 Glynn Clements <[email protected]> > > katrin eggert wrote: > > > I just one to confirm one thing. If I'm using r.resamp.stats with > > *mode *option. > > If the most frequent value is a null, will i have a null value in the > ouput? > > No. > > With the -n option, the output is null if any input cell is null. > Without the -n option, most aggregates (including "mode") ignore null > cells; you'll only get a null result if all input cells are null. > > IIRC, the only reason that nulls are retained in the array passed to > the aggregate functions is that some of them (e.g. interspersion, > regression) consider the cell's position within the array, and having > the caller discard nulls beforehand would interfere with this. > > -- > Glynn Clements <[email protected]> >
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