Regression Refresher

Learn about evaluation analysis and sampling scenarios in inference for regression.

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Needed packages

Let’s load all the packages needed for this chapter. Loading the tidyverse package by running library(tidyverse) loads the following commonly used data science packages all at once:

  • ggplot2: This is for data visualization.

  • dplyr: This is for data wrangling.

  • tidyr: This is for converting data to the tidy format.

  • readr: This is for importing spreadsheet data into R.

  • purrr, tibble, stringr, and forcats: These are the more advanced packages.

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