Creating pie charts for categorical variables

In the last movie, we looked at creating a bar chart for categorical variables.…It' s one of the most basic charts that you can possibly create in statistics.…In this movie, we're going to look at the closely related chart, the pie chart.…Now a pie chart is also used to…show a univariate distribution on a categorical variable.…And a pie chart is a very common method for showing things but,…as I'm going to show you, there's some certain problems with a pie chart.…And there are reasons…why you might want to avoid them and use bar charts instead.…Let's start by opening up the same data that we had in the previous one.…

We're going to make sure the datasets package is loaded, you can run this…if you need to, and then we're going to open up the data called chickwts.…I'm going to load that up.…And then we're going to create a table with the frequencies.…That's the format that we needed to make the pie charts and bar charts.…So I'm going to create it, called feeds, and I'm going to use the function…table to go to the dataset chickwts, and pull out the table feed.…