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  3. Market Basket Analysis in R

Exercise

What's in the basket?

It's important at this point in time to be able to visualize what's in the basket. Data frames are nice and easy to work with but you would rather have a plot to display the different items that are included in your baskets, or at least a part of these items.

The transactional object Online_trx is loaded in the workspace. You will use the itemFrequencyPlot() function from the arules package to visually inspect the top most bought products from these set of transactions and find the most convenient plot.

Instructions 1/3

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  • 1
    • Display the five most popular items in the dataset Online_trx.
  • 2
    • Now let's change the item frequencies to absolute instead of relative. Change the number of displayed items to 10.
  • 3
    • Set the orientation of the frequency plot horizontally.