You are given a data set called biopics.csv containing information on biographical movies. Your task is to perfor some manipulations on the biopics data.

Data overview

The original biopics data come as part of the fivethirtyeight R package. You will be working with a preprocessed version, available for you at

$./$data$/$biopics$.$csv$.$ It contains the following columns:

title $-$ the movie's title;

country $-$ the country of production;

year$\_$release $-$ the year the movie was released;

box$\_$office $-$ the movie's earning at the box office, in Dollars;

type$\_$of$\_$subject $-$ the occupation of the movie's subject, or the reason for their recognition;

lead$\_$actor$\_$actress $-$ the name of the actor or actre who played the subject.