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  3. Exploratory Data Analysis in R

Exercise

Transformations

Highly skewed distributions can make it very difficult to learn anything from a visualization. Transformations can be helpful in revealing the more subtle structure.

Here you'll focus on the population variable, which exhibits strong right skew, and transform it with the natural logarithm function (log() in R).

Instructions

100 XP

Using the gap2007 data:

  • Create a density plot of the population variable.
  • Mutate a new column called log_pop that is the natural log of the population and save it back into gap2007.
  • Create a density plot of your transformed variable.