[R] Reading characters using read.table()

Florent BATY baty at biomserv.univ-lyon1.fr
Wed Aug 7 13:51:38 CEST 2002

Thanks a lot !
By using

 > var_read.table("file",colClasses=c("character"))

R returns a data.frame with characters in it.


ripley at stats.ox.ac.uk wrote:

>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().


Florent BATY
Dynamique des Populations Bactériennes
Faculté de Médecine Lyon-Sud
69921 OULLINS, BP 12
tel : +33 (0)4 78 86 31 67
fax : +33 (0)4 78 86 31 49

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