[R] Crosstabulation with a frequency variable

[Sarah Goslee]

Hi,

There are lots of ways to do it in base R, but a long time ago I got
frustrated and wrote a crosstab function that did exactly what I
wanted:

library(ecodist)
mydata <- data.frame(var1=c(0,0,1,1),var2=c(0,1,0,1),freq=c(11,12,13,14))
crosstab(var1, var2, freq, data=mydata)

   0  1
0 11 12
1 13 14

Sarah

On Thu, Aug 13, 2015 at 5:30 AM, Dean1 <web13site at yahoo.co.uk> wrote:
> Hi all,
>
> I've had a few years experience with R, which is why this is so frustrating,
> my problem seems so simple but I can't find a solution.
>
> I have a data frame in the following form:
>
> data.frame(var1=c(0,0,1,1),var2=c(0,1,0,1),freq=c(11,12,13,14))
>
> How do I create a crosstab with frequencies?
>      0    1
> 0: 11  12
> 1: 13  14
>
>

-- 
Sarah Goslee
http://www.functionaldiversity.org