Qt GUI front end
Idrisi32 front end
Has now working grass 6 support; compile with
How 'bout 2.4.4
Gstat 2.4.4 has support for grass 6.
Some minor bug fixes
What's new in 2.4.2
- experimental support for reading (and some writing) of
GDAL raster maps
- point data are now also read from GRASS rasters, not only GRASS
- libcsf is no longer packaged with gstat, but should be installed
separately before compiling gstat. See links
section where to get it.
- S/R library is now also available for S-Plus 6.0 and 6.1 for Windows,
What's new in 2.4.0
What's new in 2.3.8
corrected a bug related to reading data files ending on .vdc, which did
What's new in 2.3.7
corrected a bug related to cross validating data, when no output file
What's new in 2.3.6
removed a bug related to reading command files with the command
set fit = 7;
What's new in 2.3.5
What's new in 2.3.5 (relative to 2.3.4 and 2.3.3)?
Removed a bug, related to reading asciigrid mask maps. This bug was introduced
when support for non-square grid cells was built into version 2.3.3.
- when writing multiple simulations to an ascii file, user-supplied format
specification is now applied instead of a default format.
What's new in 2.3.4
What's new in 2.3.4 (relative to 2.3.3)?
What's new in 2.3.3
What's new in 2.3.3 (relative to 2.3.0)?
What's new in 2.3.0
What's new in 2.3.0 (relative to 2.1.0)
simple mouse support for the interactive variogram modelling
added new variogram fit weighting criterion: N(h)/(h*h)
(with the advantage that it doesn't change when the model changes,
so re-fitting gives the same fit all the time)
added normal score transform, using:
data(xx): 'file.dat', ..., ns='ns.dat'; # write norm. scores to ns.dat
I did not include a back transform, because its non-trivial; read the
GSLIB book or gstat-info threads about it.
added data sampling:
data(xx): 'file.dat', ..., prob=0.1; # sample randomly with P=0.1
data(xx): 'file.dat', ..., every=10; # select every 10-th sample
data(xx): 'file.dat', ..., every=10, offset=2; # select points 2, 12, 22, ....
updated plotting of kriging weights (uses gnuplot); see manual at
set plotweights = 10; set plotfile = 'file';
for an impression of kriging weights plotting with plotweights=10)
support PNG instead of GIF images, using
gstat -e map2png
What's new in 2.1.0
Read what was new in versions
- Interpolation with edges (given as polygons) -- code contributed
by Konstantin Malakhanov and Steve Joyce. Read about it in the manual.
replaced sk_mean with beta parameter vector, used in conjunction with
X. This allows for simple kriging with a known, non-constant mean
function. The phrase
sk_mean = 5.3
is now equivalent to
beta = [ 5.3 ]
However, the latter can be extended, e.g. by
beta = [ 1.8, 3.7 ], X = 3
to obtain a non-constant mean function.
- Addition of Surfer DSAA grid maps, bug fixes in the Idrisi grid
map support. Read about it in the relevant section of the manual
- Faster code for multiple simulation generation; bug fixes for
reproduction of data during Gaussian or indicator simulation
- Numerous code changes to enhance portability and improve
- added CYGWIN Win32 port
- allow seed values over INT_MAX by using
set useed = 3057282920U;
- Native gstat variogram fitting uses Gauss-Newton (again). When
weights N(h)/gamma(h)**2 are used, the weights are fixed during the
fit and taken from the initial variogram (otherwise, the fit may not
converge to a minimum weighted SSErr value). Levenberg-Marquardt is
still obtained by Gnuplot fitting.
accomodated the code for a Qt-based
windows front end (in development): read the release
notes and download the binary. The
accomodation involved a complete rewrite of all I/O to stdin/stdout/stderr,
by using runtime-modifiable wrapper functions, see set_gstat_error_handler()
Last modified: June 17, 2005
Page contents by
Edzer J. Pebesma,
page layout by Kor de Jong.