Re: [R-sig-Geo] spatio temporal anisotropy: help with stAni argument

2018-05-22 Thread Barry Rowlingson
This question has also been posted to gis.stackexchange.com: https://gis.stackexchange.com/questions/283607/spatio-temporal-anisotropy-in-r-stani-argument-in-vgmst-and-krigest/ and better answers than mine there are welcome... Barry On Tue, May 22, 2018 at 8:39 AM, Dr. Benedikt Gräler

Re: [R-sig-Geo] spatio temporal anisotropy: help with stAni argument

2018-05-22 Thread Dr . Benedikt Gräler
Dear Bruno, stAni relates spatial and temporal distances to each other in the model for the data set under study. A value of 100 km/day reflects that two stations 100 km apart have about the same strength of dependence as the values one day apart at the same location (This is in general only

[R-sig-Geo] spatio temporal anisotropy: help with stAni argument

2018-05-21 Thread Bruno Sesti
Hi, I have some problems in understanding the usage of argument 'stAni' of vgmST and krigeST functions, for.the setting of spatio temporal anisotropy. How have I to interpret this argument, that is the integer value that I saw I have to assign to it, what does it means? How can this argument