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Data Visualization

Effective Charts

Effective charts help convey your message.  Many people are visual learners so they learn best from seeing something rather than trying to visualize the information provided. Below are examples of some effective charts.

Scatter Plots

Scatter plots display the relationship between two variables. They differ from line charts because they observe trends between variables and one variable doesn't have to be related to time.

Line Charts

Line charts display series of data, like things that happen over time. A important aspect is that they must have consistent intervals (i.e., months, years, weeks). They also help viewers identify patterns in the data.

Bar Charts

Bar charts are a very common chart for two reasons:

  1. Easy to read.
  2. Great at comparing data across categories and/or groups.

Stacked Bar Charts

Stacked bar charts display part- to whole-relationships of data.

Box Plots

Box plots are distributions of continuous variables. They display the 25th, 50th, and 75th percentiles. The plot's orientation can either be horizontal (landscape) or vertical (portrait).

Geographic Data Maps

Recognizability is powerful for sharing geographic information.