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  3. Visualizing Time Series Data in R

Exercise

Compare old and new portfolios

Great work. You decide to buy stocks in Coca-Cola, and now your portfolio is made of equal proportions of four stocks: Yahoo, Microsoft, Apple and Coca-Cola.

In this exercise, you are given a dataset old.vs.new.portfolio with the following self-explanatory columns:

  • old.portfolio.value
  • new.portfolio.value
  • old.portfolio.rtn
  • new.portfolio.rtn

Instructions

100 XP
  • Plot the old portfolio value, then add the new portfolio value onto the same chart; make the old portfolio black and the new one red
  • Plot the density of the old portfolio returns, then add the density of the new portfolio returns on the same chart; make the old portfolio black and the new one red