[R] Data manipulation

Dimitris Rizopoulos Dimitris.Rizopoulos at med.kuleuven.be
Sat Sep 29 14:03:36 CEST 2007


use something like the following (untested)

files <- paste("C:/d", 1:3, ".txt", sep = "")
dats <- vector("list", 3)
for (i in 1:3) {
   dats[[i]] <- read.table(files[i], header = TRUE)
}
dats
do.call("rbind", dat)


I hope it helps.

Best,
Dimitris

----
Dimitris Rizopoulos
Ph.D. Student
Biostatistical Centre
School of Public Health
Catholic University of Leuven

Address: Kapucijnenvoer 35, Leuven, Belgium
Tel: +32/(0)16/336899
Fax: +32/(0)16/337015
Web: http://med.kuleuven.be/biostat/
      http://www.student.kuleuven.be/~m0390867/dimitris.htm


Quoting Stefo Ratino <sratino at yahoo.com>:

> Hello,
>
> I am beginner in R and I would like to solve the following problem:
> Suppose that we have  three files to be red in R d1, d2, and d3
>
>> d1
>   id x1 x2
> 1  1  4  n
> 2  2  3  h
> 3  3  0  f
>> d2
>   id x1 x2
> 1  1  2  r
> 2  2  3  u
> 3  3  1  f
>> d3
>   id x1 x2
> 1  1  2  a
> 2  2  1  w
>
> Is there any library or function that one can read this datasets like
> for(i in 1:3)
>  d[i] <- read.table(file=d[j].txt, header=T)
>
> and is it possible to delete the header for each file and to have   
> them in one data frame like
>
>> d
> 1   1  4  n
> 2   2  3  h
> 3   3  0  f
> 4   1  2  r
> 5   2  3  u
> 6   3  1  f
> 7  1  2  a
> 8  2  1  w
> 9  3  1  f
>
> I really appreciate your help!
> Stefo
>
>
>
>
>
>
> ---------------------------------
>
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>
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