Displaying 1 result from an estimated 1 matches for "tp1217808p1236563".
2010 Jan 23
1
(nlme, lme, glmmML, or glmmPQL)mixed effect models with large spatial data sets
Hi,
I have a spatial data set with many observations (~50,000) and would like to
keep as much data as possible. There is spatial dependence, so I am
attempting a mixed model in R with a spherical variogram defining the
correlation as a function of distance between points. I have tried nlme,
lme, glmmML, and glmmPQL. In all case the matrix needed (seems to be
(N^2)/2 - N) is too large for my