d.correlate manual: screenshot added; r.regression.line, r.regression.multi: keyword and man crosslinks added

git-svn-id: https://svn.osgeo.org/grass/grass/branches/releasebranch_7_0@66624 15284696-431f-4ddb-bdfa-cd5b030d7da7

raster/r.regression.line/main.c

@@ -45,6 +45,7 @@ int main(int argc, char *argv[])
     module = G_define_module();
     G_add_keyword(_("raster"));
     G_add_keyword(_("statistics"));
+    G_add_keyword(_("regression"));
     module->description =
 	_("Calculates linear regression from two raster maps: y = a + b*x.");
 

raster/r.regression.line/r.regression.line.html

@@ -60,6 +60,14 @@ echo $R
 0.894038
 </pre></div>
 
+<h2>SEE ALSO</h2>
+
+<em>
+<a href="d.correlate.html">d.correlate</a>,
+<a href="r.regression.multi.html">r.regression.multi</a>,
+<a href="r.stats.html">r.stats</a>
+</em>
+
 
 <h2>AUTHORS</h2>
 

raster/r.regression.multi/main.c

@@ -127,6 +127,7 @@ int main(int argc, char *argv[])
     module = G_define_module();
     G_add_keyword(_("raster"));
     G_add_keyword(_("statistics"));
+    G_add_keyword(_("regression"));
     module->description =
 	_("Calculates multiple linear regression from raster maps.");
 

raster/r.regression.multi/r.regression.multi.html

@@ -69,14 +69,25 @@ available through the R-function stepAIC.
 
 <h2>EXAMPLE</h2>
 
+<!-- replace with better example -->
+
 Multiple regression with soil K-factor and elevation, aspect, and slope
 (North Carolina dataset). Output maps are the residuals and estimates:
+
 <div class="code"><pre>
 g.region raster=soils_Kfactor -p
 r.regression.multi mapx=elevation,aspect,slope mapy=soils_Kfactor \
   residuals=soils_Kfactor.resid estimates=soils_Kfactor.estim
 </pre></div>
 
+<h2>SEE ALSO</h2>
+
+<em>
+<a href="d.correlate.html">d.correlate</a>,
+<a href="r.regression.line.html">r.regression.line</a>,
+<a href="r.stats.html">r.stats</a>
+</em>
+
 <h2>AUTHOR</h2>
 
 Markus Metz

scripts/d.correlate/d.correlate.html

@@ -23,6 +23,11 @@ g.region raster=lsat7_2002_30 -p
 d.correlate map=lsat7_2002_30,lsat7_2002_40
 </pre></div>
 
+<center>
+<img src="d_correlate_plot.png" border=1 alt="Scatterplot of two LANDSAT TM7 channels"><br>
+Scatterplot of two LANDSAT TM7 channels
+</center>
+
 <h2>SEE ALSO</h2>
 
 <em>