R: cbind

On 8/8/05, Clark Allan <Allan at stats.uct.ac.za> wrote:

hi all


are we able to combine column vectors of different lengths such that the
result appears in matrix form?

e.g.

a=1
b=1:3
d=1:4

then

z=CBIND(a,b,d)


1 1 1
 2 2
 3 3
   4

i stil want the following!
z[,1]=1
z[,2]=1:3
z[,3]=1:5

i made up the name of this function. we could use "cbind" but it does
not seem to allows this!

There are a number of alternatives:

# 1. just create a list

x1 <- list(a = 1, b = 1:3, c = 1:4)

# 2. create a ts object:

x2 <- do.call("cbind", lapply(x1, ts))

# 3. create a matrix from the ts object

x3 <-  unclass(do.call("cbind", lapply(d, ts)))
tsp(x3) <- NULL