[R] Query: how to add quotes when importing a txt file

Michael Rennie michael.rennie at utoronto.ca
Fri May 9 15:06:05 CEST 2008


Hi Stefano,

Why do you *need* to add the quotes to the text file? If you leave them 
out, any of the standard methods of reading data (i.e., 
read.table(filename, sep="") should work. See help(read.table), 
help(scan), or help(read.fwf) for more info.

Mike

Stefano Sofia wrote:
> Dear R users,
> I have a txt file of the form
>
> 10092007 24.62 24.31 24.90
> 11092007 19.20 23.17 22.10
> 13092007 24.71 27.33 23.10
> 14092007 27.33 27.90 24.10
> 15092007 28.22 28.55 24.30
> 16092007 28.53 29.24 27.40
> 17092007 24.19 30.64 26.80
> 18092007 22.60 20.62 28.40
> 19092007  8.89  1.70 14.70
> 20092007 21.27  2.92 17.30
> 21092007 22.38 24.72  8.80
> 22092007 23.94 24.73 20.40
> 23092007 25.33 25.12 22.60
> 24092007 24.91 22.46 21.40
> 25092007 23.52 25.00 21.70
> 26092007  2.50  2.29  8.80
>
> and I have to import it into R. The problem is that I have to add the quotes at the beginning and end of the file, like shown here below. I tried to use read.zoo (in fact I will have to use the zoo package afterwards), but I have not been able to do what I need. 
> Could you please help me in that? (not necessarily with read.zoo, any method will be fine!)
>
> "10092007 24.62 24.31 24.90
> 11092007 19.20 23.17 22.10
> 13092007 24.71 27.33 23.10
> 14092007 27.33 27.90 24.10
> 15092007 28.22 28.55 24.30
> 16092007 28.53 29.24 27.40
> 17092007 24.19 30.64 26.80
> 18092007 22.60 20.62 28.40
> 19092007  8.89  1.70 14.70
> 20092007 21.27  2.92 17.30
> 21092007 22.38 24.72  8.80
> 22092007 23.94 24.73 20.40
> 23092007 25.33 25.12 22.60
> 24092007 24.91 22.46 21.40
> 25092007 23.52 25.00 21.70
> 26092007  2.50  2.29  8.80"
>
> thank you
> Stefano
>
> 	[[alternative HTML version deleted]]
>
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>   

-- 
Michael D. Rennie
Ph.D. Candidate
University of Toronto at Mississauga
3359 Missisagua Rd. N. 
Mississauga, ON L5L 1C6
Ph: 905-828-5452 Fax: 905-828-3792
www.utm.utoronto.ca/~w3rennie



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