Dear Nikos,
Could you forward to me the replies?
Thanks in advance.
Dr. Mahmut CETIN
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: 31 Agustos 2001 Cuma 14:04
Subject: AI-GEOSTATS: cross variograms and nugget
> Hi all,
> My question is on cross-variogram calculation and specifically:
> I have a cross variogram that shows negative spatial correlation but there
is a
> nugget effect which is positive. Another crossvariogram shows positive
spatial
> correlation and the nugget effect is negative.
> My question is: what does the nugget effect imply in those cases and is it
> posible for two variables to present negative correlation at small
distances
> and positive correlation at larger distances?
>
> Thanks in advance
> Nikos
>
>
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