list to data frame by rows ...

Johann Petrak <johann at ai.univie.ac.at> writes:

Ugh, newbie question ... :

I have a list of vectors of equal size, like
  list(c(1,2,3),c(4,5,6)) 
and want to convert this into a data frame row-wise:

1   1 4
2   2 5
3   3 6

Whats the elegant/R-way to do this?

In general the cbind function is used to bind columns into an array.
If you want to invoke it on a list of arguments you can use do.call to
create the function call.  Combining these gives

mylist <- list(c(1,2,3),c(4,5,6)) 
do.call("cbind", mylist)

[,1] [,2]
[1,]    1    4
[2,]    2    5
[3,]    3    6
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !)  To: r-help-request at stat.math.ethz.ch
_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._