In R 2.1.1, the default behaviour of scan() was changed to process all
C-style escapes, even when a delimiter was specified using the 'sep'
argument. A new argument 'allowEscapes' was introduced to turn this
processing off.
Because read.table() calls scan(), read.table() inherits the new default
behaviour of scan() but without a way to turn it off. For example, reading
a file testdata.txt' containing
X
A
\0
C
produces
> read.delim("testdata.txt")
[1] X
<0 rows> (or 0-length row.names)
It seems that all the occurances of scan() within read.table() need to have
'allowEscapes=FALSE' added to the argument string.
Gordon
> version
_
platform i386-pc-mingw32
arch i386
os mingw32
system i386, mingw32
status Patched
major 2
minor 1.1
year 2005
month 07
day 22
language R
---------------------------------------------------------------------------------------
Dr Gordon K Smyth, Senior Research Scientist, Bioinformatics,
Walter and Eliza Hall Institute of Medical Research,
1G Royal Parade, Parkville, Vic 3050, Australia
Tel: (03) 9345 2326, Fax (03) 9347 0852,
Email: [EMAIL PROTECTED], www: http://www.statsci.org
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