[GRASS-dev] [GRASS GIS] #1401: r.series for time series
GRASS GIS
trac at osgeo.org
Sat Jul 9 14:52:36 EDT 2011
#1401: r.series for time series
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Reporter: mmetz | Owner: grass-dev@…
Type: enhancement | Status: new
Priority: normal | Milestone: 7.0.0
Component: Raster | Version: svn-trunk
Keywords: raster, time series | Platform: All
Cpu: All |
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The attached patch adds weighing windows to r.series. This is useful for
interpolation of NULL cells in time series data, e.g. with
{{{
r.series method=average window=gauss
}}}
which will provide more realistic results than the same command without a
weighing window.
The weighing windows are taken from r.resamp.filter with modifications to
the gauss and normal windows to make them pseudo-finite. At the moment,
only one windowing function can be selected, i.e. coupling an infinite
window with a finite window is currently not possible. In contrast to
r.resamp.filter, the sinc window will never have negative weights. In my
tests, the hann, hamming, and blackman windows seem to produce reasonable
results even without coupling with a finite window.
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Ticket URL: <https://trac.osgeo.org/grass/ticket/1401>
GRASS GIS <http://grass.osgeo.org>
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