[R] Two additive effets in random of lme
bates at stat.wisc.edu
Fri Jul 9 14:33:45 CEST 2004
Papy Gaston wrote:
> how I can put two additive effects in random of lme ?
It is best to use the version of lme from the lme4 package to do this.
In that version you can use a formula for random like
random = ~ 1 | rows + columns
The most general form of the random specification is as a named list
where the names correspond to the grouping factors.
random = list(rows = ~ time, columns = ~ 1)
This only works in the version of lme from the lme4 package. It does
not work in the version from the nlme package.
More information about the R-help