RE: AI-GEOSTATS: moving averages and trend

2010-02-02 Thread Cornford, Dan
Sebastiano, I am struggling to understand why you are interested in doing trend + residual separation? There can be no unique decomposition of a data set into 'trend' and 'residual', it is a judgement about what model you feel is most appropriate given your prior beliefs and observations

RE: AI-GEOSTATS: Interpolation of measures with measurement errors

2009-10-06 Thread Cornford, Dan
Enrico, sorry we have caused some problems / confusion. I will reply inline below: From: Enrico Guastaldi [mailto:enrico.guasta...@gmail.com] Sent: 05 October 2009 17:04 To: Cornford, Dan Cc: ai-geostats@jrc.it; r-sig-...@stat.math.ethz.ch Subject: Re: AI-GEOSTATS: Interpolation of measures

RE: AI-GEOSTATS: Interpolation of measures with measurement errors

2009-09-28 Thread Cornford, Dan
Enrico, we have built an online system to perform this as part of the INTAMAP project - you can try this here: http://intamap.geo.uu.nl/~jon/intamap/tryIntamapj.php If you paste in observations with Gaussian errors (I assume the +/- means one or two standard deviations - I would check