1 > add four = function(x){x+4} This is an R function. Functions accept arguments and return values in accordance with their purpose. In this example, we consider a function addfour, which accepts any...

1 > add four = function(x){x+4}

This is an R function. Functions accept arguments and return values in accordance with their purpose. In this example, we consider a function addfour, which accepts any data type x which supports addition with a scalar in R. This includes matrices, vectors, etc. Write your own simple function to find the cube of its input.