[R] A problem about all possible sequences

Robin Hankin r.hankin at noc.soton.ac.uk
Tue Apr 17 16:32:59 CEST 2007


f <- function(n){expand.grid(rep(list(0:1),n))}



On 17 Apr 2007, at 15:26, Paul Smith wrote:

> Dear All
> Suppose a sequence of length 10 generated by the following rule: the
> first element is 0 with 50% of probability or 1 with the same
> probability; the second element likewise; and so on.
> Is there some R command to obtain all possible different sequences
> formed by the above rule? I am aware that one could write a small
> program to do that, but I am speculating about whether a command is
> already existent.
> Thanks in advance,
> Paul
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Robin Hankin
Uncertainty Analyst
National Oceanography Centre, Southampton
European Way, Southampton SO14 3ZH, UK
  tel  023-8059-7743

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