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  3. Visualizing Big Data with Trelliscope in R

Exercise

Relationship between trip duration and total fare

We would assume that there is a relationship between the total cab fare and the duration of the trip. Since there are too many data points to make a scatterplot, let's use a hexagon-binned plot to investigate this relationship.

tx is available for you in your workspace.

Instructions

100 XP
  • Use hexagon bins to visualize the bivariate distribution of total_amount (y-axis) vs. trip_duration (x-axis).
  • Set the bins argument of geom_hex() to 75.
  • Since both variables are highly skewed, rescale both the x and y axes to log base 10. Note that these transformations will generate some warnings about a relatively small number of records with zero trip duration or fare amount.