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2007 May 15
2
Unexpected alteration of data frame column names
Hi,
I'm using data.frame(..., check.names=FALSE), because I want to create
a data frame with duplicated column names (in the real life you can get such
data frame as the result of an SQL query):
> df <- data.frame(aa=1:5, aa=9:5, check.names=FALSE)
> df
aa aa
1 1 9
2 2 8
3 3 7
4 4 6
5 5 5
Why is [.data.frame changing my column names?
> df[1:3, ]