Lab 4E
Directions: Follow along with the slides and answer the questions in red font in your journal.
Will including more variables in our model improve its predictions?
movie
data and split it into two sets (See Lab 4C for help). Remember to use set.seed
.
training
that includes 75% of the data.testing
that includes the remaining 25%.training
data, that predicts gross
using runtime
.
testing
data.runtime
is the only factor that goes into how much a movie will make? What else might affect a movie’s gross
?gross
using runtime
and reviews_num
.lm()
.movie
data you think would help you make better predictions.
testing
data than the model that included only runtime
and reviews_num
testing
data.