Message-ID: <x24rdeeodw.fsf@biostat.ku.dk>
Date: 2002-08-28T20:09:47Z
From: Peter Dalgaard
Subject: NA rownames in dataframes
In-Reply-To: <763C275E6A1C2248AFD475237AD6135B5EC6BA@MSGBOS576NTS.fmr.com>
"Yi, Derek" <Derek.Yi at FMR.COM> writes:
> > data.frame(b)
> Error in if (missing(row.names) && (nrows[i] > 0) && (rowsi[[1]] != ""))
> row.names <- data.row.names(row.names, :
> missing value where logical needed
>
> > traceback()
> 3: data.frame(..., check.names = FALSE)
> 2: cbind(...)
> 1: cbind(b)
>
> This seems to be a problem associated only with dataframes, as a similar
> example using matrices works perfectly fine. Has anyone experienced this
> behavior before?
Not to my knowledge, on this list, anyway. However, it looks like a
fairly clear bug. I think you want
... && !(rowsi[[1]] %in% "")
in the relevant line about two-thirds through data.frame().
Character NA's (as opposed to the string "NA") are a relatively new
invention, and oversights like this are bound to happen.
(NA rownames are generally a bad idea, though...)
--
O__ ---- Peter Dalgaard Blegdamsvej 3
c/ /'_ --- Dept. of Biostatistics 2200 Cph. N
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907
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