Dear All,
Probably something very easy, but I am looking for the most efficient ways
to achieve this.
Consider the following snippet
y<-c('a','b','c','d','e','f','g')
x<-rnorm(length(y))
df<-data.frame(y,x)
leading to
df$y
[1] a b c d e f g
Levels: a b c d e f g
Now, I would like to replace levels ('e','f','g') of df$y with a new level
'other' so that levels(df$y) returns
a b c d other
What is the easiest way to achieve this, considering that
df$y[5:7]<-'other'
Does not work?
Cheers
Lorenzo
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