ÐÐÐСÐÐÐÐ

   r.regression.line 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. The
   result includes the following coefficients: offset/intercept (a) and
   gain/slope (b), residuals (R), number of elements (N), means (medX,
   medY), standard deviations (sdX, sdY), and the F test for testing the
   significance of the regression model as a whole (F).

ÐÐ ÐÐÐÐ

   Comparison of the old and the new DEM in Spearfish:

g.region rast=elevation.10m -p
r.regression.line map1=elevation.dem map2=elevation.10m

   Using the script style flag AND eval to make results available in the
   shell:

g.region rast=elevation.10m -p
eval `r.regression.line -g map1=elevation.dem map2=elevation.10m`
echo $a
479.615

echo $b
0.645631

echo $R
0.804441

ÐÐТÐÐ

   Dr. Agustin Lobo - alobo at ija.csic.es
   Updated to GRASS 5.7 Michael Barton, Arizona State University
   Script style output Markus Neteler

   Last changed: $Date: 2007-12-17 07:53:55 -0600 (Ðн, 17 дек 2007) $

ÐвÑÐ¾Ñ Ð¿ÐµÑевода