The first step to analyzing survey data in R is to read the data file into your R environment ... For example, to estimate President Donald Trump’s job approval (q1- a factor variable), use the ...

See how to join two data sets by one or more common columns using base ... with base R, I’d first unzip the flight delay file and then import both flight delay data and the code lookup file ...

This video builds on the basics introduced in Part 1. By the end of the video, students will be able to: (1) summarize the goals of analyzing twin data for a single phenotype, (2) summarize the ...

Statistics and Data Visualization Using R: The Art and Practice of Data Analysis by David S. Brown teaches students statistics through charts, graphs, and displays of data that help students develop ...