[GRASS-CVS] markus: grass6/scripts/r.regression.line
description.html, 1.3, 1.4
grass at intevation.de
grass at intevation.de
Tue Dec 4 15:36:16 EST 2007
Author: markus
Update of /grassrepository/grass6/scripts/r.regression.line
In directory doto:/tmp/cvs-serv7959
Modified Files:
description.html
Log Message:
explain coefficients
Index: description.html
===================================================================
RCS file: /grassrepository/grass6/scripts/r.regression.line/description.html,v
retrieving revision 1.3
retrieving revision 1.4
diff -u -d -r1.3 -r1.4
--- description.html 2 Dec 2007 14:26:12 -0000 1.3
+++ description.html 4 Dec 2007 20:36:13 -0000 1.4
@@ -2,7 +2,12 @@
<EM>r.regression.line</EM> Calculates linear regression from two raster maps,
according to the formula y = a + b*x, where x and y represent raster maps.
-Optionally saves regression coefficients to an ASCII file.
+Optionally saves regression coefficients to an ASCII file.
+The result includes the following coefficients:
+offset (a) and gain (b), residuals (R),
+number of elements (N), medians (medX, medY), standard deviations
+(sdX, sdY), and the F test for testing the significance of the
+regression model as a whole (F).
<br>
<H2>EXAMPLE</H2>
More information about the grass-commit
mailing list