[R] Head or Tails game

William Dunlap wdunlap at tibco.com
Sat Aug 4 05:55:28 CEST 2012


Use a loop to run over the 10,000 reps and in each rep use
rle(x>=0) to look at the runs of nonnegative numbers, postprocessing
its output a bit to count them.

Bill Dunlap
Spotfire, TIBCO Software
wdunlap tibco.com


> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf
> Of darnold
> Sent: Friday, August 03, 2012 7:14 PM
> To: r-help at r-project.org
> Subject: Re: [R] Head or Tails game
> 
> David,
> 
> set.seed(123)  # always good to make reproducible
> winnings <- sum(sample(c(-1,1), 10000, replace=TRUE))
> 
> Unfortunately, that's not the game. The game requires 40 flips of a coin.
> 
> Then you have to play the game 10,000 times.
> 
> D.
> 
> 
> 
> --
> View this message in context: http://r.789695.n4.nabble.com/Head-or-Tails-game-
> tp4639142p4639145.html
> Sent from the R help mailing list archive at Nabble.com.
> 
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