Created
June 12, 2012 16:23
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Recommenderlab walkthrough 1-5
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# What is the mean rating of each movie | |
qplot(colMeans(MovieLense), binwidth = .1, | |
main = "Mean rating of Movies", | |
xlab = "Rating", | |
ylab = "# of movies") | |
# The big spike on 1 suggests that this could also be intepreted as binary | |
# In other words, some people don't want to see certain movies at all. | |
# Same on 5 and on 3. | |
# We will give it the binary treatment later |
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