Message-ID: <Pine.LNX.4.31.0208071126520.9202-100000@gannet.stats>
Date: 2002-08-07T10:28:24Z
From: Brian Ripley
Subject: Reading characters using read.table()
In-Reply-To: <3D50F3CA.9030201@biomserv.univ-lyon1.fr>
On Wed, 7 Aug 2002, Florent BATY wrote:
> I need to read a vector containing names of different variables from a
> text file (a unique column). Among them one is called "T". When I use
> the function read.table with default arguments and when I call the
> element of the data frame corresponding to name of this variable it
> returns me the logical value "TRUE" whereas I was expected it to return
> the character "T".
> Is it possible to specify the type data expected in a data frame when
> using the read.table function in order to make it unable to interpret
> "T" as "True" ?? Or is there any other functions enabling to import text
> data from a text file ??
Yes, see the help page and argument colClasses.
Yes, I would have used scan().
--
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272860 (secr)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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