Andrea Aime wrote: > Jody Garnett ha scritto: >> What a difficult question; is there a strict definition of the >> quantile function we could grab from statistics or something? > > I did not find much, and none of what I've found talks about how to > handle flat areas in the data histogram: > http://www.gisbanker.com/introduction_part5.htm > http://www.geovista.psu.edu/grants/dg-qg/classing_epi/summary.html > http://www.censusmapper.com/CM_Help/classifyfield.htm > ... Your first link there hits the nail on the head: > Quantiles are best suited for data that is linearly distributed; in > other words, data that does not have disproportionate numbers of > features with similar values. So basically user beware...
Jody ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Geotools-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-devel
