Attributes and levels
Let's take a look the data in chocolate_wide
. If you type head(chocolate_wide)
you'll see we have a lot of columns. The column labeled Selection
stores our observed choice, similar to the Choice
variable in the sportscar data. The columns labeled Brand1
, Brand2
and Brand3
show the brands of the alternatives that were included in the choice questions. Similarly Price1
, Price2
and Price3
contain the prices and Type1
, Type2
and Type3
show the types.
This exercise is part of the course
Choice Modeling for Marketing in R
Exercise instructions
- Use
head
to inspect the first rows in the data frame. - Use
summary
to see whichBrand
s,Price
s andType
s were included in the survey.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Look at the head() of chocolate_wide
# Use summary() to see which brands and types are in chocolate_wide