Overview for Variability Chart

Use Variability Chart as a preliminary tool to investigate variation in your data, including cyclical variations and interactions between factors. The variability charts show the relationships between factors and a response. Each chart displays up to eight factors.

Two variability charts are available.
  • The average response with variation chart
  • The standard deviation chart

Where to find this analysis

To create variability charts, choose Stat > Quality Tools > Variability Chart.

When to use an alternate analysis

To test the statistical significance of the factors or the interactions, you can use an ANOVA (analysis of variance) or a regression analysis.

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