Werner, Barry I just wrote to have Kriging in QGIS with less external *dependencies* like GRASS, SAGA (or R). That's what I meant by "easier to use" in my initial thread.
Then I challenged the benefit of Kriging versus IDW just because I don't want to use it because it's cool. Thanks to Barry and others for the explanations. The use case you obviously have in mind, is to do data analytics as a researcher or informed user - which requires the steps Sjur mentioned (many thanks too). On the other hand, to me it's still worth thinking of a helper dialog (in whatever implementation and whatever you call it) which suggests parameters calculated on cross validation. ... Unless you are saying that only statisticians can ever master Kriging :-O :Stefan 2015-09-28 17:34 GMT+02:00 Werner Macho <[email protected]>: > Well written and I fully support that. > Sometimes it seems that people want a wizard for everything (and a > computer that can read their mind). > I am against imitating everything that "commercial software" provides. > Sometimes it is better to treat users to switch on their brain. > For me that is still the point that separates Opensource Software from > proprietary one. > I am not sure if we should try to get more users at all cost. Let's do > things correct - even if that is not always popular (because it is not > in reach with one click). > > just my 2c > Werner > > On Mon, Sep 28, 2015 at 1:37 PM, Barry Rowlingson > <[email protected]> wrote: >> On Mon, Sep 28, 2015 at 10:35 AM, Victor Olaya <[email protected]> wrote: >> >>> From the point of view of user-friendliness, the Processing >>> implementation (wrapping the corresponding SAGA modules), might not be >>> as easy to use as some people would like, but for tools such as >>> kriging I am strongly against wizard-like UI's and similar elements. >>> ArcGIS's Statistical Analyst is great and has a wizard with a >>> fantastic "next" button that allows you to interpolate using all sort >>> of esoteric methods and will make you believe that you are creating >>> sound raster layers...when the truth is that, without knowledge, you >>> are creating rubish. I don't like to give users that wrong sensation. >> >> Agreed. Anything claiming to be a "wizard" for Kriging really needs to >> be a psychic wizard that can read your thoughts and understand your >> data. A better device would be an "Interrogator": >> >> *ping* Your data seems to be discrete small integers, are you sure you >> want to model it as a Gaussian? [*yes*/no] >> >> *ping* So you want to model your data with Gaussian cofactor response >> p-value thresholds from an underlying Bayesian surface? [*yes*/no] >> >> *ping* That last question was nonsense. You're just clicking "yes" >> until you get a surface model - any surface model - right? [*yes*/no] >> >> *ping* okay, at least you are honest. I'm deleting the kriging module >> now, go find a statistician. >> >> Barry >> _______________________________________________ >> Qgis-developer mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/qgis-developer > _______________________________________________ > Qgis-developer mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-developer _______________________________________________ Qgis-developer mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-developer
