Hello all,
My first try with the fields library's Tsp function, trying to imitate
the ozone example with my data, has resulted in the following error
message:
> fit <- Tps(as.matrix(all.60[,5:6]),as.vector(all.60[,3]))
Error in if (den < 0) { : missing value where logical needed
In addition: Warning messages:
1: GCV search gives a minumum at the endpoints of the grid search in:
Krig.find.gcvmin(info, lambda.grid, gcv.grid$GCV.one, Krig.fgcv.one,
2: no finite arguments to max; returning -Inf
What does the error message mean? What am I doing wrong?
Thanks,
Carlisle
PS: all.60 is a dataframe containing oceanographic data from 60m
depth.
Columns 5 and 6 are longitude and latitude and column 3 is
temperature.
PPS: I'm using Windows XP> version
_
platform i386-pc-mingw32
arch i386
os mingw32
system i386, mingw32
status
major 1
minor 6.1
year 2002
month 11
day 01
language R