Re: [R-sig-Geo] regression kriging in gstat with skewed distributions

2008-01-16 Thread Tomislav Hengl
-project.org/doc/contrib/Ricci-distributions-en.pdf Tom Hengl http://spatial-analyst.net -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of G. Allegri Sent: dinsdag 15 januari 2008 15:28 To: r-sig-geo@stat.math.ethz.ch Subject: [R-sig-Geo] regression kriging

[R-sig-Geo] regression kriging in gstat with skewed distributions

2008-01-15 Thread G. Allegri
I'm trying to realize e regression kriging with gstat package on my soil samples data. The response variable (ECe measuere) and covariates appear positvely skewed. As Tomislav Hengl suggests in its framework for RK [1], a logistic transformation is proposed as a generic way to reduce the skeweness