How to produce random integer numbers from 0 - 100

问题:

Using R (maybe runif() or sample()? ), how can one produce a set of integer random values? Lets say 100 random values from 0 - 100, but the values should only be by 10s (e.g 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100)

回答1:

sample will allow you to do the sampling easily. If we create a vector of the values we want it should be easy enough. seq(0,100,by=10) will allow us to construct a sequence starting at 0, ending at 100, by 10.

sample(seq(0,100,by=10), 100, replace = TRUE)

回答2:

One could select numbers uniformly from 0...10 and then multiply by 10. Sample code:

q <- 10*sample(seq(0,10), 1000, replace=TRUE)