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  3. Manipulating Time Series Data in R

Exercise

Finding an observation from a specific date

Extracting the observation at a specified point in time can come in handy when working with data such as financial records or sales history.

In this exercise, you'll extract observations from card_prices, a multiple time series that tracks the average price of three popular trading cards.

Instructions 1/3

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  • 1
    • From card_prices, extract the observation from February 25th, 2013.
  • 2
    • At the date of June 3rd, 2014, extract the second column of card_prices.
  • 3
    • Extract an observation from January 1st, 2003 from card_prices.