[Rd] RE: [R] Removing "row.names"
Kurt Hornik
Kurt.Hornik@ci.tuwien.ac.at
Wed, 7 Feb 2001 16:45:58 +0100
>>>>> Yves Gauvreau writes:
> Try this
> sampled <- data.frame(sample(rnorm(100),2))
> colnames(sampled) <- " " # Or preferably something meaningful
> sampled
> 1 1.777068
> 2 0.937161
Ouch!
This *surely* is a bug. How can it be possible to remove the variable
names in a data frame?
It may be time to reconsider what
rownames
colnames
case.names
variable.names
do for data frames.
But in fact, both
names(sampled) <- " "
and
dimnames(sampled)[[2]] <- " "
happily introduce non-unique variable names in the data frame.
Is the rule that row.names and names must be unique still on?
Argh ...
-k
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