html bugs, add see also for installations

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@41139 15284696-431f-4ddb-bdfa-cd5b030d7da7

scripts/v.krige/v.krige.html

@@ -3,6 +3,7 @@
 <em>v.krige</em> allows to perform kriging operations in GRASS
 environment, using R software functions in background.
 
+
 <h2>NOTES</h2>
 
 <em>v.krige</em> is just a front-end to R. The options and parameters
@@ -17,6 +18,7 @@ result. Good knowledge of the dataset is more valuable than hundreds
 of parameters or powerful hardware. See Isaaks and Srivastava's book,
 exhaustive and clear even if a bit outdated.
 
+
 <h3>Dependencies</h3>
 
 <dl>
@@ -24,12 +26,13 @@ exhaustive and clear even if a bit outdated.
 <dd></dd>
 
 <dt><b>rpy2</b></dt>
-<dd>Python binding to R. Note! rpy is not supported.</dd>
+<dd>Python binding to R. Note! <tt>rpy</tt> version 1 is not supported.</dd>
 
 <dt><b>R packages automap and gstat. </b></dt>
 <dd>automap is optional (provides automatic variogram fit).</dd>
 </dl>
 
+
 <h4>Notes for Debian GNU/Linux</h4>
 
 Install the dependiencies. <b>Attention! python-rpy IS NOT
@@ -37,14 +40,14 @@ SUITABLE.</b>:
 
 <div class="code"><pre>
   aptitude install R python-rpy2
-<pre></div>
+</pre></div>
 
 To install R packages, use either R's function (as root):
 
 <div class="code"><pre>
   install.packages("gstat", dep=T)
   install.packages("spgrass6", dep=T)
-<pre></div>
+</pre></div>
 
 either the brand new Debian packages [5], add to repositories' list
 for 32bit or 64bit (pick up the suitable line):
@@ -52,13 +55,13 @@ for 32bit or 64bit (pick up the suitable line):
 <div class="code"><pre>
   deb <a href="http://debian.cran.r-project.org/cran2deb/debian-i386">http://debian.cran.r-project.org/cran2deb/debian-i386</a> testing/
   deb <a href="http://debian.cran.r-project.org/cran2deb/debian-amd64">http://debian.cran.r-project.org/cran2deb/debian-amd64</a> testing/
-<pre></div>
+</pre></div>
 
 and get the packages via aptitude:
 
 <div class="code"><pre>
   aptitude install r-cran-gstat r-cran-spgrass6
-<pre></div>
+</pre></div>
 
 <h4>Notes for Windows</h4>
 
@@ -88,7 +91,7 @@ elevation raster, as if it came from a point survey.
  v.random output=rand2k_elev n=2000
  v.db.addtable map=rand2k_elev column="elevation double precision"
  v.what.rast vect=rand2k_elev rast=elevation.10m column=elevation
-<pre></div>
+</pre></div>
 
 <b>Part 2: remove points lacking elevation attributes</b>. Points
 sampled at the border of the elevation map didn't receive any
@@ -100,14 +103,14 @@ removed from the map.
 
 <div class="code"><pre>
  v.extract rand2k_elev output=rand2k_elev_filt where="elevation not NULL"
-<pre></div>
+</pre></div>
 
 Check the result of previous line ("number of NULL attributes" must be
 0):
 
 <div class="code"><pre>
  v.univar rand2k_elev_filt type=point column=elevation
-<pre></div>
+</pre></div>
 
 <b>Part 3: reconstruct DEM through kriging</b>. Using automatic
 variogram fit is the simplest way to run v.krige from CLI (note:
@@ -129,7 +132,7 @@ v.krige command).
  v.krige input=rand2k_elev_filt column=elevation output=rand2k_elev_kriging \
          output_var=rand2k_elev_kriging_var model=Lin sill=2500 nugget=0 range=1000 \
          --overwrite
-<pre></div>
+</pre></div>
 
 Or run wxGUI, to interactively fit the variogram and explore options:
 
@@ -144,7 +147,7 @@ Or run wxGUI, to interactively fit the variogram and explore options:
  r.univar elevation.10m
  r.univar rand2k_elev_kriging
  r.univar rand2k_elev_kriging_pe
-<pre></div>
+</pre></div>
 
 The results show high errors, as the kriging techniques (ordinary and
 block kriging) are unable to handle a dataset with a trend, like the
@@ -153,6 +156,7 @@ and lower on northeast corner. Universal kriging can give far better
 results in these cases as it can handle the trend. It is available in
 R package gstat and will be part of a future v.krige release.
 
+
 <h2>SEE ALSO</h2>
 
 R package <a href="http://cran.r-project.org/web/packages/gstat/index.html">gstat</a>,
@@ -162,13 +166,22 @@ mantained by Edzer J. Pebesma and others
 R
 package <a href="http://cran.r-project.org/web/packages/spgrass6/index.html">spgrass6</a>,
 mantained by Roger Bivand
+<br>
+
+The <a href="http://grass.osgeo.org/statsgrass/grass6_r_install.html">Short
+Introduction to Geostatistical and Spatial Data Analysis with GRASS 6
+and R statistical data language</a> at the GRASS website. (includes
+installation tips)
+
 <br><br>
 
 v.krige's <a href="http://grass.osgeo.org/wiki/V.krige_GSoC_2009">wiki page</a>
 
 <h2>REFERENCES</h2>
 
-Isaaks and Srivastava, 1989: "An Introduction to Applied Geostatistics" (ISBN 0-19-505013-4) 
+Isaaks and Srivastava, 1989: "An Introduction to Applied Geostatistics"
+ (ISBN 0-19-505013-4) 
+
 
 <h2>AUTHOR</h2>