Simulation - Hadley Wickham

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•

Your turn

Create a function that draws a histogram of

n replicates of mean(rnorm(100))

Modify your function to draw a histogram of

n draws of mean(rnorm(m))

Modify your function to allow the user to

choose which distribution function, d, to use

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• • • • Building up a function Start simple Do it outside of the function Test as you go Give it a good name

• • • Your turn Create a function that draws a histogram of n replicates of mean(rnorm(100)) Modify your function to draw a histogram of n draws of mean(rnorm(m)) Modify your function to allow the user to choose which distribution function, d, to use

Page 1 and 2: Simulation Hadley Wickham
Page 3 and 4: • • • • Basics of simulatio
Page 5 and 6: Generating random numbers • runif
Page 7 and 8: Repetition • Use the replicate fu
Page 9 and 10: What your code might have looked li
Page 11 and 12: Dry rule
Page 13: • Functions Let us avoid repetiti
Page 17 and 18: Your turn • Figure out how to do
Page 19 and 20: • • Another exploration How doe
Page 21 and 22: New function • sapply • Takes f
Page 23: • • • • Your turn Look at t

Simulation - Hadley Wickham

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