[Rd] Bug in read.table (PR#463)
Peter Dalgaard BSA
p.dalgaard@biostat.ku.dk
01 Mar 2000 00:26:58 +0100
Thomas Lumley <thomas@biostat.washington.edu> writes:
> On Tue, 29 Feb 2000 venkat@biosta.mskcc.org wrote:
>
> >
> > I want to report a bug in read.table. The attached output demonstrates
> > the bug. Unfortunately, the data file contains confidential information
> > and hence cannot be attached. Is there any way to figure out the cause
> > of the bug and fix it? Thanks.
>
>
> Here's the output in readable form. The bug seems to be that
> count.fields() thinks the records are the same length but read.table
> doesn't.
....
> > options(width=72)
> > count.fields("Consult/krasdata",sep="\t")
> [1] 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18
> [23] 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18
> [45] 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18
> [67] 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18
> [89] 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18
> > read.table("Consult/krasdata",sep="\t")
>
> row.lens=
> [1] 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18
> [23] 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18
> [45] 18 18 18 18 18 18 18 18 18 18 18 18 18 1 1 18 18 18 18 18 18 18
> [67] 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18
> [89] 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18
> Error in read.table("Consult/krasdata", sep = "\t") :
> all rows must have the same length.
read.data and count.fields have different defaults for the quote=
argument (which is arguably a bug). Try read.table(...,quote="") if
the data contain quote marks (single or double).
--
O__ ---- Peter Dalgaard Blegdamsvej 3
c/ /'_ --- Dept. of Biostatistics 2200 Cph. N
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk) FAX: (+45) 35327907
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