Computing a multiple regression

- Perhaps the most common and most…powerful statistical technique that we use is…Multiple Regression where several variables are used…collectively to predict scores on a single outcome variable,…a quantitative outcome usually.…In this example we're gonna be…using data about USJudgeRatings.…Let's take a quick look at that one…and this is where lawyers evaluated…forty three judges on twelve variables:…contact, integrity, demeanor, and so on,…finishing with worthy of retention,…which I'm going to be taking as the final outcome variable…that everything else seemed to fit into whether…they felt a judge was worthy of retention.…

Let's load the data here and take…a look at the first five cases.…All right, there we go...…The basic multiple regression's actually a…pretty simple process despite looking pretty long here.…What I'm doing is I'm going to be saving it as an object…because then you can get additional information about it.…I'm gonna be saving it as reg for reg1.…The basic function is lm for linear model…then what I'm going to do is I'm gonna just…