V.krige GSoC 2009 - Revision history

⚠️Pvb: /* Installation */

2015-09-30T21:21:44Z

Installation

← Older revision		Revision as of 21:21, 30 September 2015
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	The module has dependencies:		The module has dependencies:
	* R 2.x - no exhaustive tests on compatible versions. An up-to-date R package will do the job in 99% cases.		* R 2.x - no exhaustive tests on compatible versions. An up-to-date R package will do the job in 99% cases.
	* R packages spgrass6, gstat and maptools		* R packages spgrass6 (for GRASS 6.) or rgrass7 (for GRASS 7.), gstat and maptools
	* Python module rpy2		* Python module rpy2

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	install.packages("maptools", dep=T)		install.packages("maptools", dep=T)

	~~either~~ the brand new Debian packages [6], add to repositories' list for 32bit:		If you are running GRASS 7.*, install rgrass7 instead of spgrass6:
			install.packages("rgrass7", dep=T)

			Alternatively, you can install the packages using the brand new Debian packages [6]. To do so, add to repositories' list for 32bit:

	deb http://debian.cran.r-project.org/cran2deb/debian-i386 testing/		deb http://debian.cran.r-project.org/cran2deb/debian-i386 testing/
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	aptitude install r-cran-gstat r-cran-spgrass6 maptools		aptitude install r-cran-gstat r-cran-spgrass6 maptools
			if you are using GRASS 6.*, or
			aptitude install r-cran-gstat r-cran-rgrass7 maptools
			if you are using GRASS 7.*

	=== Notes for Windows ===		=== Notes for Windows ===
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	If you really need to run v.krige right now on Windows, I suggest to compile GRASS following [http://trac.osgeo.org/grass/wiki/CompileOnWindows this guide].		If you really need to run v.krige right now on Windows, I suggest to compile GRASS following [http://trac.osgeo.org/grass/wiki/CompileOnWindows this guide].
	You could also use Linux in a virtual machine. Or install Linux in a separate partition of the HD. This is not as painful as it appears, there are lots of guides over the Internet to help you.		You could also use Linux in a virtual machine. Or install Linux in a separate partition of the HD. This is not as painful as it appears, there are lots of guides over the Internet to help you.


	== Documentation ==		== Documentation ==

⚠️Pvb: /* State of the art */

2015-09-30T21:14:26Z

State of the art

← Older revision		Revision as of 21:14, 30 September 2015
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	Dependency check is performed on grass-python module, R, rpy2 and R packages gstat and ~~spgrass6~~. If something is missing, the module won't start. Some graceful popup window will be set up in the near future. At the moment it aborts with a message in the shell.		Dependency check is performed on grass-python module, R, rpy2 and R packages gstat and rgrass7. If something is missing, the module won't start. Some graceful popup window will be set up in the near future. At the moment it aborts with a message in the shell.

	Kriging relies on R package gstat, the most widespread. geoR tab is now hidden as it doesn't provide any functionality, but if anyone is interested in using it instead of gstat I'll put this todo higher in the list.		Kriging relies on R package gstat, the most widespread. geoR tab is now hidden as it doesn't provide any functionality, but if anyone is interested in using it instead of gstat I'll put this todo higher in the list.

⚠️Anne.ghisla: /* State of the art */ v.krige works again!

2013-07-16T10:12:39Z

State of the art: v.krige works again!

← Older revision		Revision as of 10:12, 16 July 2013
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	== State of the art ==		== State of the art ==

	'''V.krige is ~~now into~~ GRASS trunk and ~~devbr_6 code~~, and ~~is currently inactive due~~ to ~~maintenance~~. ~~(r40048 or higher)'''~~		'''V.krige is back to functionality in GRASS 7 trunk, from [http://trac.osgeo.org/grass/changeset/57146 r57146] - made during [[GRASS_Community_Sprint_Prague_2013]]'''
			Soon more improvements and fixes will be available, and also be backported to GRASS 6.5. Until then, feel free to comment on [http://trac.osgeo.org/grass/query?status=assigned&status=new&status=reopened&description=~krig&order=priority the tickets on Trac] and on grass-dev mailing list.


			[[File:Schermata-Kriging Module.png\|600px]]

	~~[[File:Schermata-Kriging Module.png\|450px\|left]]~~

	Dependency check is performed on grass-python module, R, rpy2 and R packages gstat and spgrass6. If something is missing, the module won't start. Some graceful popup window will be set up in the near future. At the moment it aborts with a message in the shell.		Dependency check is performed on grass-python module, R, rpy2 and R packages gstat and spgrass6. If something is missing, the module won't start. Some graceful popup window will be set up in the near future. At the moment it aborts with a message in the shell.

⚠️Anne.ghisla: moved dev documentation to trac's wiki

2013-02-07T16:27:22Z

moved dev documentation to trac's wiki

Show changes

⚠️Landa: /* References */

2011-03-13T12:50:28Z

References

← Older revision		Revision as of 12:50, 13 March 2011
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	* [6] cran2deb repository https://stat.ethz.ch/pipermail/r-sig-debian/2009-July/000805.html		* [6] cran2deb repository https://stat.ethz.ch/pipermail/r-sig-debian/2009-July/000805.html

	~~[[Category:~~GSoC]]		{{GSoC}}
	[[Category:R]]		[[Category:R]]

⚠️AnneGhisla: /* Bulletin Board */ rewrite of v.krige.

2011-03-10T16:45:31Z

Bulletin Board: rewrite of v.krige.

← Older revision		Revision as of 16:45, 10 March 2011
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	* '''FUTURE PLANS'''		* '''FUTURE PLANS'''
	** ~~Keep on working on~~ v.krige ~~and solve above problems~~		** Rewrite v.krige in order to remove R dependency. It is not nice to add another program as dependency of a core module, a library is acceptable. Possible candidates:
	** ~~Backward compatibility~~ of ~~CLI at least~~		*** '''gstat''' - Pro: it has native GRASS binding. Con: it is not developed as standalone program since 2003, in favour of R package gstat.
			*** '''HPGL''' http://hpgl.aoizora.org/ - Python/C++ library with Python API. Pro: Very rich set of functions and parallelisation. Con: Not supported on Mac

	== Documentation ==		== Documentation ==

⚠️AnneGhisla: removed x/y column hack and added maptools dependency

2009-12-28T14:09:15Z

removed x/y column hack and added maptools dependency

← Older revision		Revision as of 14:09, 28 December 2009
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	The module has dependencies:		The module has dependencies:
	* R 2.x - no exhaustive tests on compatible versions. An up-to-date R package will do the job in 99% cases.		* R 2.x - no exhaustive tests on compatible versions. An up-to-date R package will do the job in 99% cases.
	* R packages spgrass6 and ~~gstat~~		* R packages spgrass6, gstat and maptools
	* Python module rpy2		* Python module rpy2

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	install.packages("gstat", dep=T)		install.packages("gstat", dep=T)
	install.packages("spgrass6", dep=T)		install.packages("spgrass6", dep=T)
			install.packages("maptools", dep=T)

	either the brand new Debian packages [6], add to repositories' list for 32bit:		either the brand new Debian packages [6], add to repositories' list for 32bit:
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	and get the packages via		and get the packages via

	aptitude install r-cran-gstat r-cran-spgrass6		aptitude install r-cran-gstat r-cran-spgrass6 maptools

	=== Notes for Windows ===		=== Notes for Windows ===
	At this very moment, no backward compatibility with OSGeo4W's packaged GRASS 6.4svn2 is provided, nor with WinGRASS.		At this very moment, no backward compatibility with OSGeo4W's packaged GRASS 6.4svn2 is provided, nor with WinGRASS. Testing is planned, as latest WinGRASS includes the most recent python library.

	If you really need to run v.krige right now on Windows, I suggest to compile GRASS following [http://trac.osgeo.org/grass/wiki/CompileOnWindows this guide].		If you really need to run v.krige right now on Windows, I suggest to compile GRASS following [http://trac.osgeo.org/grass/wiki/CompileOnWindows this guide].
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	** '''Splash screen at module load''' will be implemented, but activated only if maps are more than a threshold number [Markus Neteler's suggestion]		** '''Splash screen at module load''' will be implemented, but activated only if maps are more than a threshold number [Markus Neteler's suggestion]
	** Create a '''package''' to delegate dependencies check? (Stefan Krüger's suggestion)		** Create a '''package''' to delegate dependencies check? (Stefan Krüger's suggestion)
	** As kriging function from gstat requires x,y columns into attribute table, the actual implementation is a hack. Problems can arise if the map comes from another mapset, and it is unfair to modify input data.

	* '''BROKEN WINDOWS (from Martin Fowler's great book [0]) '''		* '''BROKEN WINDOWS (from Martin Fowler's great book [0]) '''

⚠️AnneGhisla: v.krige into trunk!

2009-12-18T16:39:16Z

v.krige into trunk!

← Older revision		Revision as of 16:39, 18 December 2009
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	== State of the art ==		== State of the art ==

	'''~~Interactive variogram fit~~ is ~~available~~! (~~r38714~~ or higher)''' In gstat tab, the button labeled "Plot/refresh variogram" calls up a R graphics window with the data variogram and the fitted curve. Play with options to obtain the best fit, refresh plot, and when the model fits the data, run kriging!		'''V.krige is now into GRASS trunk and devbr_6 code! (r40048 or higher)'''

	[[File:Schermata-Kriging Module.png\|450px\|left]]		[[File:Schermata-Kriging Module.png\|450px\|left]]
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	== Installation ==		== Installation ==

	It is easy to install it via [http://grass.osgeo.org/grass65/manuals/html65_user/g.extension.html g.extension] (for GRASS 6.4 it is an AddOn, from 6.5+/7 onwards included). Simply type in a GRASS shell:		For GRASS 6.5 <r40048, it is easy to install it via [http://grass.osgeo.org/grass65/manuals/html65_user/g.extension.html g.extension] (for GRASS 6.4 it is an AddOn, from 6.5+/7 onwards included). Simply type in a GRASS shell:

	g.extension v.krige		g.extension v.krige
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	* '''FUTURE PLANS'''		* '''FUTURE PLANS'''
	** Keep on working on v.krige ~~after SoC, in particular integrate it into GRASS trunk - not before November nor before some more reliability improvements.~~		** Keep on working on v.krige and solve above problems
	** Backward compatibility of CLI at least		** Backward compatibility of CLI at least

⚠️AnneGhisla: /* Bulletin Board */ update

2009-10-20T09:25:29Z

Bulletin Board: update

← Older revision		Revision as of 09:25, 20 October 2009
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	** Continue integrating '''gstat functions''' - universal kriging first.		** Continue integrating '''gstat functions''' - universal kriging first.
	** Add '''region resolution parameter in interface''', showing the current value and allowing the user to modify it before kriging. High resolution slows down computation and give better results, but the user should have a clear feedback (I have been surprised by long runs more than once, because I was not aware of resolution).		** Add '''region resolution parameter in interface''', showing the current value and allowing the user to modify it before kriging. High resolution slows down computation and give better results, but the user should have a clear feedback (I have been surprised by long runs more than once, because I was not aware of resolution).
			** wxGUI: GetVector() should check for name validity, if a string is inserted?

	* '''IDEAS TO DISCUSS'''		* '''IDEAS TO DISCUSS'''
	** '''Splash screen at module load''' will be implemented, but activated only if maps are more than a threshold number [Markus Neteler's suggestion]		** '''Splash screen at module load''' will be implemented, but activated only if maps are more than a threshold number [Markus Neteler's suggestion]
	** Create a '''package''' to delegate dependencies check? (Stefan Krüger's suggestion)		** Create a '''package''' to delegate dependencies check? (Stefan Krüger's suggestion)
			** As kriging function from gstat requires x,y columns into attribute table, the actual implementation is a hack. Problems can arise if the map comes from another mapset, and it is unfair to modify input data.
	* ~~'''BLOCKING ISSUE(S)'''~~
	** No more!!

	* '''BROKEN WINDOWS (from Martin Fowler's great book [0]) '''		* '''BROKEN WINDOWS (from Martin Fowler's great book [0]) '''
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	* '''FUTURE PLANS'''		* '''FUTURE PLANS'''
	** Keep on working on v.krige after SoC, in particular integrate it into GRASS trunk - not before November nor before some more reliability improvements.		** Keep on working on v.krige after SoC, in particular integrate it into GRASS trunk - not before November nor before some more reliability improvements.
			** Backward compatibility of CLI at least

	== Documentation ==		== Documentation ==

⚠️AnneGhisla: /* Installation */ restored svn link

2009-08-28T12:54:45Z

Installation: restored svn link

← Older revision		Revision as of 12:54, 28 August 2009
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	== Installation ==		== Installation ==

	~~To install v.krige.py, please refer to [[Compile_and_Install#Scripts]].~~ It is ~~easier~~ to install it via [http://grass.osgeo.org/grass65/manuals/html65_user/g.extension.html g.extension] (for GRASS 6.4 it is an AddOn, from 6.5+/7 onwards included). Simply type in a GRASS shell:		It is easy to install it via [http://grass.osgeo.org/grass65/manuals/html65_user/g.extension.html g.extension] (for GRASS 6.4 it is an AddOn, from 6.5+/7 onwards included). Simply type in a GRASS shell:

	g.extension v.krige		g.extension v.krige

			To install v.krige.py from source, please refer to [[Compile_and_Install#Scripts]]. Source is available on SVN:

			svn co https://svn.osgeo.org/grass/grass-addons/vector/v.krige

	'''The module requires GRASS >= 6.4 RC5''' - it uses the new version of grass-python library. At the moment, no backward compatibility with previous versions is provided.		'''The module requires GRASS >= 6.4 RC5''' - it uses the new version of grass-python library. At the moment, no backward compatibility with previous versions is provided.