Andreas Wittmann wrote:
Dear R-users,
i try to recode a factor according to old levels
F <- factor(sample(c(rep("A", 4), rep("B",2), rep("C",5))))
recode(F, "levels(F)[c(1,3)]='X'; else='Y'")
i tried to work with eval or expression around levels(F)[c(1,3)], but
nothing seems to work.
I assume that you mean the recode() function in pkg:car?
(You really should say so.)
Here are a couple of ways to recode the factor:
set.seed(6931)
F <- factor(sample(rep(c("A","B","C"), c(4,2,5))))
lev <- levels(F)
# 1: using car:::recode
F <- recode(F, "lev[c(1,3)] = 'X'; else = 'Y'")
# 2: using base:::levels
levels(F) <- list(X = lev[c(1,3)], Y = lev[-c(1,3)])
-Peter Ehlers
Many thanks if anyone could tell me what i've missed and what's the
problem here.
best regards
Andreas
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