Re: [R-sig-Geo] Spatial autocorrelation

2012-10-30 Thread Ravichandra MONDRETI
Dear all, I have very recently started using R for analysing my spatial data. Is there any way to split the main transect in to smaller ones to check for autocorrelation at various lags or intervals. For example, I am trying to split the main transect (approximately of 20Km in length) consistin

Re: [R-sig-Geo] Trouble with first passage time analysis

2012-10-30 Thread zlong
Oh! Now I get it. I figured it was something simple I just wasn't understanding. Thank you very much -- View this message in context: http://r-sig-geo.2731867.n2.nabble.com/Trouble-with-first-passage-time-analysis-tp7581501p7581513.html Sent from the R-sig-geo mailing list archive at Nabble.com

Re: [R-sig-Geo] spatial regression model

2012-10-30 Thread Paolo Piras
Dear community I write to pose a question about the best way to incorporate spatial non independence in a regression model that has multivariate responses and multiple predictors. I would like to estimate the global R-sq under OLS and its significance (no problem for that..) and compare it wh

Re: [R-sig-Geo] kriging limits

2012-10-30 Thread marco milella
Dear Simon. thanks for the tip, now it works fine best marco 2012/10/30 O'Hanlon, Simon J > Dear Marco, > You can download shapefile of the world in varying resolutions at > http://www.naturalearthdata.com/ Check under the links marked 'cultural'. > > They come with country boundaries but I thi

Re: [R-sig-Geo] kriging limits

2012-10-30 Thread O'Hanlon, Simon J
Dear Marco, You can download shapefile of the world in varying resolutions at http://www.naturalearthdata.com/ Check under the links marked 'cultural'. They come with country boundaries but I think you can easily melt these using rgeos:::gUnaryUnion Thanks, Simon -Original Message- F

Re: [R-sig-Geo] Trouble with first passage time analysis

2012-10-30 Thread Clement Calenge
I posted this question a few days ago on a different forum, and was directed here. Hopefully someone will be able to help me out. I've managed to figure out just about everything I need, I'm just left with one unresolved issue. I'm fine up to the point of creating the ltraj object from a dataset

Re: [R-sig-Geo] RSAGA issues

2012-10-30 Thread Ludwig Hilger
Hi Rainer, this worked! I always get so confused with parameter options for the geoprocessor as they seem to change from SAGA version to saga version and sometimes get.usage does not help at all! Thank you very much!!! Rainer Hurling wrote > On 29.10.2012 16:18 (UTC+2), Ludwig Hilger wrote: >>