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A linear probability model for beer demand

To see how much of an effect changes in the price ratio have on the purchases probabilities of Hoppiness, you describe the relation HOPPINESS ~ price.ratio by using the function lm(). This time, you also directly graph the estimated model by using the functions plot() and abline().

Latihan ini adalah bagian dari kursus

Building Response Models in R

Lihat Kursus

Petunjuk latihan

  • Use the function lm() to explain the purchase probabilities for HOPPINESS by price.ratio. Assign the result to an object named probability.model.
  • Display the relation between HOPPINESS and price.ratio by using the function plot().
  • Add the model predictions by applying the function abline() to the probability.model object.

Latihan interaktif praktis

Cobalah latihan ini dengan menyelesaikan kode contoh berikut.

# Explain HOPPINESS by price.ratio
probability.model <- lm(___, data = choice.data)

# Plot HOPPINESS against price.ratio
___(___, data = choice.data)

# Add the model predictions
___(___)
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