hi,
am specifying a variogram with 53 years by generating the time variable as
follows:
time - as.POSIXct(paste0(1960:2012,-01-01), tz = GMT)
When i generate the map variagram, it comes with time in thousands (see
attached map). how can i make sure that it gives time in years with a
reasonable
hi, am doing a spatio-temporal variogram and am getting this error below
that i have no response variable in my data set even though it is there. my
data am calling gdata and the response variable is pfpr. i have tried the
code below with no access. the summary of my data is as follows:
]
on behalf of Jonesmus Wambua [jonesmus.mu...@gmail.com]
Sent: Wednesday, February 13, 2013 3:25 AM
To: r-sig-geo@r-project.org
Subject: [R-sig-Geo] Fwd: spatio temporal variogram
Hi everyone,
am trying to do temporal and cross correlation and also fit a
spatio-temporal variogram with data
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.mu...@gmail.com
Date: Thu, Feb 14
Hi everyone,
am trying to do temporal and cross correlation and also fit a
spatio-temporal variogram with data in this format.
| ID year y X_COORD Y_COORD
1 1 1981 60 36.98203 2.042057
2 2 1982 40 37.12720 2.016312
3 2 1983 20 37.12720
