[GRASS-dev] r.series thresholds?

[Glynn Clements]

Hamish wrote:

> Hi, I was trying to figure out how to use the r.series threshold=
> parameter to make a MASK only where all channels of some Landsat
> data were >0 (extant), without needing to use r.null and the extra disk
> space to store a NULL file for each of the input bands (the files take up
> enough disk space as it is). so something like "output cells contain the
> count of input maps with data values >=1". for 6 input bands the output
> range would be 0-6, or null and 1-6.
> 
> ... but I was having a difficult time of understanding how it was
> supposed to work. the only mention in the man page has to do with the
> range= option.
> 
> Remembering there was some discussion about it I just found this:
>   http://article.gmane.org/gmane.comp.gis.grass.devel/22002/
> 
> .. so was the html part of the patch just never applied? or did things
> change since then? ie is it still true that the -n flag makes it ignored?
> (perhaps then issue a G_warning()?)
> 
> Is threshold= not even related to the method=threshold option?!

Ugh. Thanks for bringing this up. r.series was broken with r41667;
quantile= no longer works.

Reverted with r43853.

threshold= an method=threshold no longer exist, so this question is
moot.

-- 
Glynn Clements <glynn at gclements.plus.com>