[Rd] Underlying representation for rownames

From: hadley wickham <h.wickham_at_gmail.com>
Date: Thu, 18 Oct 2007 12:16:00 -0500

Is it possible to get at the underlying representation of row names - ie. what you see in the output from dput:

> df <- data.frame(1:4)
> dput(df)
structure(list(X1.4 = 1:4), .Names = "X1.4", row.names = c(NA, -4L), class = "data.frame")

I would like to be able to tell if a data frame has the default row names, or if they have been changed by the user. I need this for rggobi because in GGobi row names should be unique across all data frames, unless explicitly set by the user.




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