[GRASS-SVN] r40495 - grass-addons/vector/v.rast.stats2
svn_grass at osgeo.org
svn_grass at osgeo.org
Sun Jan 17 07:48:32 EST 2010
Author: dassau
Date: 2010-01-17 07:48:32 -0500 (Sun, 17 Jan 2010)
New Revision: 40495
Modified:
grass-addons/vector/v.rast.stats2/description.html
Log:
added notes about the parameters used from r.univar2.zonal
Modified: grass-addons/vector/v.rast.stats2/description.html
===================================================================
--- grass-addons/vector/v.rast.stats2/description.html 2010-01-17 12:37:37 UTC (rev 40494)
+++ grass-addons/vector/v.rast.stats2/description.html 2010-01-17 12:48:32 UTC (rev 40495)
@@ -8,11 +8,12 @@
New columns are generated in the attribute table if not already present.
<p>
Nine columns are generated (n, min, max, range, mean, stddev, variance,
-coeff_var, sum) according to the output of <em>r.univar2.zonal</em>.
-If the <B>-e</B> extended statistics flag is given the 1st quartile,
-median, 3rd quartile, and given percentile are also calculated.
+coeff_var, sum) according to the output of <em>r.univar2.zonal</em>. Column n
+complies column <em>non_null_cells</em> from <em>r.univar2.zonal</em> and all
+univariate statistics are based on <em>non_null_cells</em>. If the <B>-e</B>
+extended statistics flag is given the 1st quartile, median, 3rd quartile,
+and given percentile are also calculated.
-
<H2>NOTES</H2>
The module may take a long time to run if the raster region contains a large
@@ -32,7 +33,12 @@
<p>
If a MASK is present, it will be restored after the script finished.
The script changes temporarily to the resolution of the given raster map.
-<P>
+<p>
+At the moment not all univariate statistics calculated by
+<em>r.univar2.zonal</em> are added to the vector attribute table. It is
+currently limited to the values used in the GRASS module
+<em>v.rast.stats</em>.
+<p>
<!-- r.univar limitation
Large amounts of system memory can be used when the <B>-e</B> extended
statistics flag is used with a very large region setting. If the region
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