[R] autocorrelation in nlme; Error: cannot allocate vector of size

From: J S <yulya258_at_gmail.com>
Date: Fri, 16 May 2008 17:05:53 -0400

Dear R community,

I used a linear mixed model (named lm11) to model daily soil temperature depending upon vegetation cover and air temperature. I have almost 17,000 observations for six years.

I can not account for autocorrelation in my model, since I receive the error message after applying the function:

update(lm11, corr=corAR1())

Error: cannot allocate vector of size 220979 Kb

Do you have any suggestions?

Thanks, Julia

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