CODEWITHSUNDEEP
rrounding
Jrbald
Jrbald

Reputation: 15

rounding values in R

I am trying to quickly round numbers from a normal distribution to a whole number between 1 and 10. I want to pull a random number from a distribution, but then round to a whole number between 1 and 10. If I run: rnorm(1, 10, 2.5) I get something like 12.5689 which is greater than 10. I know I can use round or ceiling to round these values, but I am unsure how get it down to 10 without creating a function that has to sift thru each data point for each iteration and correct them. I have the same problem on the lower bound with 1 and finding values that are either negative or less than 1. thanks!

Upvotes: 0

Views: 713

Answers (1)

Gregor Thomas
Gregor Thomas

Reputation: 145775

pmin and pmax are your friends:

pmin(10, pmax(1, round(rnorm(10, 10, 2.5))))
#  [1]  9  8  9  8 10 10 10  9 10 10

Upvotes: 2

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