Opeenvolgende cashes in de World Series of Poker

Kanspuzzels in R

Peter Chi

Assistant Professor of Statistics Villanova University

World Series of Poker

  • ~ 6000 deelnemers in recente jaren
  • Prijzengeld voor top 10% — cashen

 

Pokerprof Ronnie Bardah:

  • Casht in 2010, 2011, 2012, 2013, 2014
Kanspuzzels in R

Vereenvoudigende aannames

  • Elk jaar 6000 spelers
  • Elk jaar dezelfde spelers
  • Alle spelers hebben gelijke vaardigheid
Kanspuzzels in R

De intersect-functie

players <- c(1:20)

cash_year1 <- sample(players, 4)
cash_year1

20  4 11 14

cash_year2 <- sample(players, 4)
cash_year2

18  7 19  4

intersect(cash_year1, cash_year2)

4
Kanspuzzels in R

Cashes opslaan als matrix

players <- c(1:20)

cashes <- replicate(3, sample(players, 4))
cashes

      [,1] [,2] [,3]
 [1,]    4    5    1
 [2,]   11   19    6
 [3,]   18   16    9
 [4,]   12   14   17
Kanspuzzels in R

De Reduce-functie

cashes <- replicate(3, sample(players, 4))
cashes

      [,1] [,2] [,3]
 [1,]    4    5    1
 [2,]   11   19    6
 [3,]   18   16    9
 [4,]   12   14   17

in_all_three <- Reduce(intersect, list(
    cashes[, 1], cashes[, 2], cashes[, 3]))

in_all_three

integer(0)

length(in_all_three)

0
Kanspuzzels in R

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Kanspuzzels in R

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