[R] adding tables

[arun]

HI,
May be this helps:
t2 <- table(c(10,11,12,13))
 t1 <-table(c(1,1,2,4,5))
t <- c(t1,t2)
tapply(t,sort(as.numeric(names(t))),sum)

A.K.





On Monday, December 9, 2013 7:01 PM, Ross Boylan <ross at biostat.ucsf.edu> wrote:
Can anyone recommend a good way to add tables?
Ideally I would like
t1 <- table(x1)
t2 <- table(x2)
t1+t2

It t1 and t2 have the same levels this works fine, but I need something
that will work even if they differ, e.g.,
> t1

1 2 4 5
2 1 1 1
> t2 <- table(c(10, 11, 12, 13))
> t1+t2  # apparently does simple vector addition

1 2 4 5
3 2 2 2
whereas I want
1 2 4 5 10 11 12 13
2 1 1 1  1  1  1  1

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