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monte carlo pi estimate for weblog
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| MCEstimator <- function(n = 10000){ | |
| #circ counts number of samples which are in the circle! | |
| circ=0 | |
| for (i in c(1:n)){ | |
| x=runif(1,-1,1) | |
| y=runif(1,-1,1) | |
| if ((x^2+y^2)<=1){ | |
| circ=circ+1 | |
| } | |
| } | |
| pai=(circ/n)*4 | |
| return (pai) | |
| } | |
| ##using function | |
| n = 80000; | |
| pai = MCEstimator(n) | |
| print (paste("Monte Carlo estimate of PI with",n,"samples is:",pai),quote=FALSE) |
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