Function to run one round
Now, let us use the function from the previous exercise, and write one overall function, called evaluate_first_roll, to complete one round of Craps. As seen in the sample code below, this function will take the shooter's first roll as its input, and proceed accordingly from there. The roll_dice and roll_after_point functions have been preloaded for you.
Este exercício faz parte do curso
Probability Puzzles in R
Instruções do exercício
- Use the
%in%operator to check whether the roll is a 7 or 11, resulting in an immediate win. - Use the
%in%operator to check whether the roll is a 2, 3, or 12, resulting in an immediate loss. - If a point is established, continue rolling until either the point is rolled again, resulting in a win, or a 7 is rolled, resulting in a loss.
Exercício interativo prático
Experimente este exercício completando este código de exemplo.
evaluate_first_roll <- function(roll){
# Check whether the first roll gives an immediate win
if(___){
won <- TRUE
}
# Check whether the first roll gives an immediate loss
if(___){
won <- FALSE
}
if(roll %in% c(4,5,6,8,9,10) ){
# Roll until the point or a 7 is rolled and store the win/lose outcome
won <- ___
}
return(won)
}