Re: Re: [Qgis-user] Processing of Groundwater Databases with QGIS

2011-05-27 Thread G. Allegri
Ok for file based formats, but your hint was to move form other databases to spatialite... Anyway, Spatialite is great ;) giovanni 2011/5/27 Noli Sicad : >> PS: R has also interfaces for Postgis, shapefiles, or simply dbf >> files... I don't understand what's the gain to import the datas into >>

Re: Re: [Qgis-user] Processing of Groundwater Databases with QGIS

2011-05-26 Thread Noli Sicad
> PS: R has also interfaces for Postgis, shapefiles, or simply dbf > files... I don't understand what's the gain to import the datas into > Spatialite. Portability, offline access. No database server. Simple shapefiles or simple dbf for R analysis? = Pain. Noli. _

Re: Re: Re: [Qgis-user] Processing of Groundwater Databases with QGIS

2011-05-25 Thread Christine Schmidt
21:46 An: "Christine Schmidt" Betreff: Re: Re: [Qgis-user] Processing of Groundwater Databases with QGIS Spatial interpolation can be realized in many ways. There are lot different methods, which fit different needs. - Inverse Distance Weighting (IDW) - B-Splines - Kriging - Statistical s

Re: Re: [Qgis-user] Processing of Groundwater Databases with QGIS

2011-05-25 Thread Noli Sicad
Hi Christine, Is your current data is in database system now? Getting a subset of your database from your current database system (e.g. Oracle, MS SQL, etc.) to Spatialite database which can be easily accesses by R, Grass and R Geospatial for analysis. Spatialite is supported in R package a few we

Re: Re: [Qgis-user] Processing of Groundwater Databases with QGIS

2011-05-25 Thread Giovanni Manghi
> AFAIK, QGis can do IDW [1], while the other methods will need external > softwares like GRASS and R. In this case the related QGis plugins can > be used. Kriging can be done in QGIS with the SDA4PP plugin (trough R). cheers -- Giovanni -- ___ Qgis

Re: Re: [Qgis-user] Processing of Groundwater Databases with QGIS

2011-05-25 Thread G. Allegri
Spatial interpolation can be realized in many ways. There are lot different methods, which fit different needs. - Inverse Distance Weighting (IDW) - B-Splines - Kriging - Statistical simulations - etc. As you know, none of them is correct without a knowledge of the groundwater structure and

Re: Re: [Qgis-user] Processing of Groundwater Databases with QGIS

2011-05-25 Thread Christine Schmidt
Hi Bob, thanks for the feed back. Do you capture groundwater level data in boreholes and in monitoring wells with this plugin to store it in a database? Sounds interesting although I wasn't searching exactly for that. Want to process data of existing groundwater databases with QGIS. Processing