1r.regression.line(1) Grass User's Manual r.regression.line(1)
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6 r.regression.line - Calculates linear regression from two raster maps:
7 y = a + b*x
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10 raster, statistics
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13 r.regression.line
14 r.regression.line help
15 r.regression.line map1=string map2=string [output=string]
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17 Parameters:
18 map1=string
19 Map for x coefficient
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21 map2=string
22 Map for y coefficient
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24 output=string
25 ASCII file for storing regression coefficients (output to screen if
26 file not specified).
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29 r.regression.line Calculates linear regression from two raster maps,
30 according to the formula y = a + b*x, where x and y represent raster
31 maps. Optionally saves regression coefficients to an ASCII file.
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34 Comparison of the old and the new DEM in Spearfish:
35 g.region rast=elevation.10m
36 r.regression.line elevation.dem map2=elevation.10m
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40 Dr. Agustin Lobo - alobo@ija.csic.es
41 Updated to GRASS 5.7 Michael Barton, Arizona State University
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43 Last changed: $Date: 2005/08/30 14:57:07 $
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45 Full index
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49GRASS 6.2.2 r.regression.line(1)