Exercise

Inspector retail

In the last exercise, you got a glimpse of your data by summarizing your transactional dataset. In this exercise, you will delve deeper by using the inspect() function. It is important to be able to inspect transactions and to limit the number of transactions being inspected if the number of transactions is too large. The transactional object Online_trx is loaded in your workspace. It is your turn to play with the inspection of the transactions. Beware that carelessly inspecting a set of million of transactions may lead to a freezing R session.

Instructions 1/3

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  • 1
    • Inspect both the first 3 transactions and the last five transactions of Online_trx.
  • 2
    • Inspect the 10th transaction of Online_trx.
  • 3
    • Inspect the 12th, 20th and 22nd transactions of Online_trx.