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We will cover the following tasks in 44 minutes:
In this section we’re going to look at the Big Picture. What are we going to do to the data and why.
Sometimes Data doesn’t come in with Colnames as is the case with this Data. We will add the colnames. Just follow me along.
More Clean Up
We’re going to discuss how to change the class of a Vector. This is important. I also will show you a quick way to look at the data to see what is needed to be changed.
Funny data isn’t funny if you don’t catch it. It can spell trouble down the road when others are looking at your work. Come in and we’ll learn some of the more basic ways to check for funny data.
Stripping Out Data
In this chapter we’re going to remove data the old fashion way using Base R. Come in and see how to do this and also to keep up with the lesson.
Finally. I told you in Chapter 2 we would do Lubridate. Better than late than ever. I’ll show you a couple useful functions within the package.
Adding a Column
In this chapter I will show you how to add a column to your data set. You can also use this for feature engineering when building models down the road.
Tables and Branches
We’re going to do some analysis using our old dplyr tool set. We’re going to group by Branch and then do some analysis to see which branches are not living up to the others.
Let’s dive in a little further and see how the Credit Department might freak out at some of these orders.