Choosing a visualization

Data Storytelling Case Study: Green Businesses

Camilo Martínez Burgos

Data analysis and public policy consultant

Scatter plots

  • Useful for showing the relationship between two variables
  • The x-axis represents one variable and the y-axis represents the other
  • Points on the plot represent individual data points

Example scatter plot

Data Storytelling Case Study: Green Businesses

Line plots

  • Useful for showing trends over time
  • The x-axis represents time and the y-axis represents the variable being measured
  • Each data point is connected by a line

Example line plot

Data Storytelling Case Study: Green Businesses

Bar plots

  • Useful for showing comparisons between categories
  • The height of each bar represents the value being measured
  • The bars can be horizontal or vertical

Example col plot

Data Storytelling Case Study: Green Businesses

Pie charts

  • Useful for showing proportions
  • The size of each slice represents the proportion of the whole
  • Pie charts should only be used when there are a small number of categories

Example pie chart

Data Storytelling Case Study: Green Businesses

Heat maps

  • Useful for showing how values are distributed across two variables
  • The x-axis and y-axis represent the two variables being measured
  • The color of each cell represents the value being measured

Example heat map

Data Storytelling Case Study: Green Businesses

Let's practice!

Data Storytelling Case Study: Green Businesses

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