[R] create sequences from two "from" and "to" vectors

Marc Schwartz marc_schwartz at comcast.net
Fri Jan 9 21:48:21 CET 2009


on 01/09/2009 02:42 PM Yasir Kaheil wrote:
> hi all,
> how can I create sequences that start from a known vector, say x1 and end
> with another say x2- also suppose all the sequences will be the same length.
> I don't want to use a for loop
> x1<-c(1,2,3,4); x2<-(3,4,5,6);
> what I want is 
> 1 2 3 4 
> 2 3 4 5
> 3 4 5 6
> 
> Thanks


> mapply(seq, x1, x2)
     [,1] [,2] [,3] [,4]
[1,]    1    2    3    4
[2,]    2    3    4    5
[3,]    3    4    5    6



See ?mapply

HTH,

Marc Schwartz




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