[R] reading in tab delimited data in a loop
Liaw, Andy
andy_liaw at merck.com
Wed Mar 5 21:01:38 CET 2003
There's no bold face in plain text. I assume it's the line inside the loop
that's giving you trouble.
Two approaches:
1. for(i in 1:4) assign(paste("simu", i, sep=""), read.table(...))
2. simu <- vector(4, mode="list")
for(i in 1:4) simu[[i]] <- read.table(...)
Andy
> -----Original Message-----
> From: Edmond Ng [mailto:Edmond.Ng at lshtm.ac.uk]
> Sent: Wednesday, March 05, 2003 2:26 PM
> To: r-help at stat.math.ethz.ch
> Subject: [R] reading in tab delimited data in a loop
>
>
> Dear all,
>
> I need to read in 4 sets of tab delimited data in a loop.
> The 4 data sets are called "simu1.dat", "simu2.dat" and so
> on. I know what I need on the righthand side of the
> read.table expression but I can't the left hand side of it to
> work (see the line in bold below). Can you kindly help? Many thanks.
>
> simu1 <- matrix(0,30,3)
> simu2 <- matrix(0,30,3)
> simu3 <- matrix(0,30,3)
> simu4 <- matrix(0,30,3)
>
> for (i in 1:4) {
> simu[i] <- read.table( paste("simu",i,".dat",sep="") )
> }
>
>
> Edmond
>
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