anova test fails on lme fits created with pasted formula

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Ben’s answer works, but do.call provides the more general solution he wished for.

getm <- function(xs) {
    f <- as.formula(paste("y ~", paste(xs, collapse="+")))
    do.call("lme", args = list(f, random=~1|id, data=d, method="ML"))
}

It works because (by default) the arguments in args = are evaluated before being passed to lme.

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