[R] A problem about all possible sequences

Chuck Cleland ccleland at optonline.net
Tue Apr 17 16:44:12 CEST 2007


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.

levels(interaction(c(0,1), c(0,1), c(0,1), c(0,1),
                   c(0,1), c(0,1), c(0,1), c(0,1),
                   c(0,1), c(0,1), sep=""))

> Thanks in advance,
> 
> Paul
> 
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Chuck Cleland, Ph.D.
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