I am running Debian Etch on a dual Xeon 64 bit Dell
Precision with the latest versions of R and
RandomFields.
I am unable to run the first example in ?GaussRF (in
RandomFields).
The bug occurs when GaussRF runs the line
error - InitSimulateRF(x = x, y = y, z = z, T = T,
grid = grid, model =
OK I found the problem.
locate libblas.so.3 showed there were two such files,
one in /usr/lib/, the other in /usr/lib/atlas/
removing the atlas installation cured the bug.
Not sure what I should do if I later find that I need
atlas for some reason.
cheers
David
We are trying to use the corCompSymm function in nlme
The example from the help pages for the corAR1 function gives the following
corAR1(0.2, form = ~ 1 | Mare)
Correlation structure of class corAR1 representing
Phi
0.2
We are expecting a somewhat similar correlation specification with the
I am experiencing strange results using dmvnorm. I define a scaled distance
matrix from the coordinates bellow and then calculate a covariance matrix using
a spherical correlation function. Then with certain combinations of
range and sill parameters dmvnorm is returning values greater than 1.
) fit you model by alternating between using nls() and passing the
residuals to the functions in geoR
or
2) try trying to fit using the functions in the nlme() package
Regards
P.J.
On Tue, 30 Sep 2003, David Pleydell wrote:
Hi
I am struggling to fit a non-linear trend using the
likfit function
Hi
I am struggling to fit a non-linear trend using the
likfit function in geoR.
Specifically I want a sigmoidal function, something
like SSfpl in the nls package to fit the trend. But
it seems trend.spatial in geoR only works with lm or
glm type models.
Any ideas how I can specify the model to
