Hi,
i checked the mannuals and managed to sort out my problem. I just wanted
to inquire about something that is not very clear in the specification
of the variogram argument. what informs the specification of width and
cutoff? am realizing that my results are changing depending on what i
put there. i have 5 time points (in years) and 1164 spatial locations.

som=variogram(PfPR~1, somal, width=10, cutoff=100)

plot(som, ylab="time lag (years)")
plot(som, map=FALSE, ylab="time lag (years)")


---------- Forwarded message ----------
From: Jonesmus Wambua <jonesmus.mutua@gmail.com>
Date: Thu, Feb 14, 2013 at 2:08 PM
Subject: Spatio temporal variogram
To: "r-sig-geo@r-project.org" <r-sig-geo@r-project.org>


Hi,
i checked the mannuals and managed to sort out my problem. I just wanted
to inquire about something that is not very clear in the specification
of the variogram argument. what informs the specification of width and
cutoff? am realizing that my results are changing depending on what i
put there.

som=variogram(PfPR~1, somal, width=10, cutoff=100)

plot(som, ylab="time lag (years)")
plot(som, map=FALSE, ylab="time lag (years)")


Thanks in advance!

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