Recep kantarci wrote:
Dear ai-geostats members
When the data used has a trend, it is needed to model trend and in this
case there exists various types of kriging to apply (universal kriging,
kriging with a trend, regression kriging etc).
If this is the case, does one should use the same type
To add to the excellent comments by Edzer and Gregoire,
1. Universal kriging = kriging with a trend. The second terminology has been
proposed by Andre
Journel who felt that the term "universal" was vague and misleadingly
"ambitious".
2. Kriging with an external drift (KED) is mathematically t
Dear Recep,
I don't think the type of variable has any impact on the choice of the
detrending algorithm. There is indeed a whole collection of methods and
one can also cite the various methods in which the trend is modelled by
neural networks (e.g. Kanevski's NNRK Neural Network Residual Kriging)
[mailto:[EMAIL PROTECTED]
Sent: donderdag 30 juni 2005 16:54
To: Recep kantarci; ai-geostats@unil.ch
Subject: RE: [ai-geostats] modelling trend and kriging type
To add to the excellent comments by Edzer and Gregoire,
1. Universal kriging = kriging with a trend. The second terminology has been
TECTED]
Envoyé : vendredi 1 juillet 2005 10:55
À : Pierre Goovaerts; Recep kantarci; ai-geostats@unil.ch
Objet : RE: [ai-geostats] modelling trend and kriging type
Dear AI-list,
in which context KED is mostly used? I have found examples of this
methodology in the context of soil science and c
Title: RE: [ai-geostats] modelling trend and kriging type
Hi all
I may know this already, but what are the symptoms of data with a trend? What is the difference between a dataset with a trend and a non-stationary dataset?
Cheers
Perry Collier
Senior Mine Geologist
Ernest Henry Mine
them speak"
-Original Message- From: Pierre Goovaerts [mailto:[EMAIL PROTECTED]] Sent: Friday, 1 July 2005 12:54 AM To: Recep kantarci; ai-geostats@unil.ch Subject: RE: [ai-geostats] modelling trend and kriging type
To add to the excellent comments by Edzer and Gregoire, 1. Univers
July 2005 03:49
To: ai-geostats@unil.ch
Subject: RE: [ai-geostats] modelling trend and kriging type
Hi all
I may know this already, but what are the symptoms of data with a trend?
What is the difference between a dataset with a trend and a
non-stationary dataset?
Cheers
Perry Collier
S
ly 2005 12:54 AM
To: Recep kantarci; ai-geostats@unil.ch
Subject: RE: [ai-geostats] modelling trend and kriging type
To add to the excellent comments by Edzer and Gregoire,
1. Universal kriging = kriging with a trend. The second terminology has been
proposed by Andre
Journel who felt tha
