Graphing

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[edit] Univariate

Graphs of a single variable.

[edit] Categorical or ordinal

These graphs might also be used for interval variables which have a relatively small number of categories (e.g., less than 10).

[edit] Bar graphs

[edit] Pie-charts

[edit] Ratio

These graphs might also be used for interval variables which have a relatively small number of categories (e.g.,more than 5).

[edit] Error-bar graphs

[edit] Histograms

An example of a histogram; shows the heights of 31 Black Cherry trees.

[edit] Bivariate

Graphs of the relation between two variables.

[edit] Clustered bar-graph

[edit] Scatterplot

[edit] Error-bar graph

Error-bar graph showing mean pulse rates and 95% confidence intervals by exercise level.

[edit] See also

Run a search on Graphing at Wikipedia.

• Introduction to graphs

[edit] External links

• Summary of The Four Levels of Measurement: Appropriate Descriptive Statistics and Graphs (wilderdom.com)
• Tulip 3.0.1