Take Random Samples from a Data Frame in R Programming – sample_n() Function
sample_n() function in R Language is used to take random sample specimens from a data frame.
Syntax: sample_n(x, n)
x: Data Frame
n: size/number of items to select
name age ht school 1 Chaman 9 NA no 2 Abhi 7 46 yes 3 Bhavesh 5 NA yes
 Chaman Bhavesh Dimri Levels: Abhi Bhavesh Chaman Dimri
Here, in the above code, column name is specified. Hence, the size is applied within the factor.