leverage

Incorporating Graphs in Regression Diagnostics with Stata

May 24th, 2016 by

Stage 2You put a lot of work into preparing and cleaning your data. Running the model is the moment of excitement.

You look at your tables and interpret the results. But first you remember that one or more variables had a few outliers. Did these outliers impact your results? (more…)


Linear Models in R: Improving Our Regression Model

April 23rd, 2015 by

Stage 2Last time we created two variables and used the lm() command to perform a least squares regression on them, and diagnosing our regression using the plot() command.

Just as we did last time, we perform the regression using lm(). This time we store it as an object M. (more…)