How to get samples from a data set in R
SAMPLE () function
# Generates 10 random numbers between 1 and 100
> sample(1:100,10)
[1] 31 26 55 6 45 46 77 35 51 16
You can do samples with replacement as well.
# Generate 10 random numbers between 1 and 100 with replacement
> sample(1:100,10, replace = TRUE)
[1] 54 72 54 75 43 18 78 89 55 28
Sampling is also used to generate training and test data from a dataset.