[R] Adding List Elements To A Data Frame

[David Winsemius]

On Jul 19, 2013, at 12:54 PM, Pete Brecknock wrote:

> Hi 
> 
> I am trying to add the contents of the list "myList" to a new column "z" in
> the data frame "myDataframe"
> 
> myList <- list(c("A1","B1"), c("A2","B2","C2"), c("A3","B3"))
> 
> myDataframe <- data.frame(x=c(1,2,3), y=c("R","S","T"))
> 
> Would like to produce
> 
> x  y  z
> 1  R  A1,B1
> 2  S  A2,B2,C2
> 3  T  A3,B3
> 
> where z is a character string holding the contents of the different elements
> of the list.

> myDataframe[[3]] <- I(myList)
> myDataframe
  x y          z
1 1 R     A1, B1
2 2 S A2, B2, C2
3 3 T     A3, B3

-- 

David Winsemius
Alameda, CA, USA