[R] (no subject)

[Allan Engelhardt]

Maybe something like:

y <- readLines("foo")
z <- strsplit(y, ",")
cols <- sort(unique(unlist(z)))  #  Assuming this is what you want for 
column names....
m <- matrix(0, nrow=length(z), ncol=length(cols), 
dimnames=list(as.character(1:length(z)), cols))
for (i in 1:length(z)) {
     m[i, z[[i]]] <- 1
}
print(m)
#   A B C D E F G O
# 1 1 1 1 1 0 0 1 0
# 2 1 0 1 0 1 0 0 1
# 3 0 0 0 0 0 1 1 0

Hope this helps you a little.

Allan

On 25/06/10 13:00, ricardo.sousa2001 at portugalmail.pt wrote:
> Hello,
>     I'm new in using the R, but from what I read is an excellent tool.
>    Would you like if I could help, I am trying create an array from 
> reading a text file.
>
>    The idea is to read the file, and transform the data in binary 
> format, for example. The calves of this file format.
>
>
> A,B,C,D,G
> A,C,E,O
> F,G
>
>
> Put this away
>
>    a b c d e f g o
> 1  1 1 1 1 0 0 1 0
> 2  1 0 1 0 1 0 0 1
> 3  0 0 0 0 0 1 0 0
>
>  and display in monitor.
>
>   Thanks for the help
>