This chapter will introduce a dataset from the multivariate problem category. We will learn how to use exploratory data analysis techniques to analyze this data. We will first learn to clean the data and understand the underlying structure of the dataset. We will cover the parsimonious model and Levene's test and then move on to data visualization. Following this, we will carry out exploratory data analysis on a real-world dataset called Longley's Economic Regression Data.
The following topics will be covered in this chapter:
- Introducing and reading data
- Cleaning and tidying up data
- Mapping and understanding the underlying structure of a dataset and identifying the most important variables
- Testing assumptions and hypotheses, estimating parameters, and calculating the margins of error
- Uncovering a parsimonious model
- Running a two-sample test for...
