Calculating the posterior difference
The posterior proportion_clicks for the video and text ad has been put into a single posterior data frame. The reason for [1:4000] is because these proportion_clickss are not necessarily of the same length, which they need to be when put into a data frame.
Now it's time to calculate the posterior probability distribution over what the difference in proportion of clicks might be between the video ad and the text ad.
Questo esercizio fa parte del corso
Fundamentals of Bayesian Data Analysis in R
Esercizio pratico interattivo
Prova a risolvere questo esercizio completando il codice di esempio.
posterior <- data.frame(
video_prop = posterior_video$proportion_clicks[1:4000],
text_prop = posterior_text$proportion_click[1:4000])
# Calculate the posterior difference: video_prop - text_prop
# Visualize prop_diff