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idhous
2012 Aug 29
1
spatial correlation in lme and huge correlation matrix (memory limit)
Hi,
I'm trying to introduce a (spatial) exponential correlation
structure (with range=200 and nugget.effet of 0.3) in a lme model of
this form: lme(ARBUS~YEAR, random=~1|IDSOUS).
The structure of the data is "IDSOUS" "XMIN" "YMAX" "YEAR" "ARBUS"
with 2 years of data and 5600 points for each year.
I do:
corstr<-corExp(value=200, form=~XMIN+YMAX|YEAR, nugget=0.3)
with |year to calculate correlation of IDSOUS(plo...