Functions in R

 

These exercises are about the functions sections of Introduction to R.

– Create a function which takes one number and returns the square of that number

## [1] 9

– Create a function which takes two numbers and returns the mean

## [1] 2

• Create a function which takes two vectors and returns the mean

## [1] 2

• Create a function which takes two numbers and returns the two numbers as a vector and the mean, summary and multiple as a data.frame.

## [[1]]
## [1] 1 3
## 
## [[2]]
##   mean sum multiple
## 1    2   4        3

– Create a function which takes one argument and finds the smallest number whose factorial is greater than that argument.

## [1] 7

## [1] 70

– Add a if and else statement in your function to only calculate factorial code if argument is a numeric.

## [1] 7

## Please provide a numeric argument!