[R] cbind question, please

Michael Hannon jmhannon.ucdavis at gmail.com
Fri Apr 24 01:09:38 CEST 2015


Is this what you're looking for?

> dog <- 1:3

> bat <- 2:4

> tree <- 5:7

> big.char <- c("dog","bat","tree")

> do.call(cbind,lapply(big.char, get))
     [,1] [,2] [,3]
[1,]    1    2    5
[2,]    2    3    6
[3,]    3    4    7
>


On Thu, Apr 23, 2015 at 3:41 PM, Erin Hodgess <erinm.hodgess at gmail.com> wrote:
> Hello!
>
> I have a cbind type question, please:  Suppose I have the following:
>
> dog <- 1:3
> cat <- 2:4
> tree <- 5:7
>
> and a character vector
> big.char <- c("dog","cat","tree")
>
> I want to end up with a matrix that is a "cbind" of dog, cat, and tree.
> This is a toy example.  There will be a bunch of variables.
>
> I experimented with "do.call", but all I got was
> 1
> 2
> 3
>
> Any suggestions would be much appreciated.  I still think that do.call
> might be the key, but I'm not sure.
>
> R Version 3-1.3, Windows 7.
>
> Thanks,
> Erin
>
>
> --
> Erin Hodgess
> Associate Professor
> Department of Mathematical and Statistics
> University of Houston - Downtown
> mailto: erinm.hodgess at gmail.com
>
>         [[alternative HTML version deleted]]
>
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