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442 Main Menu Appendix B
The Graph Menu
can specify that different variables be shown on the sides and bottom of the matrix, giving maximum
flexibility for comparisons. For details, see the JMP Statistics and Graphics Guide.
Ternary Plot
The Ternary Plot command constructs a plot using triangular coordinates. The ternary platform uses
the same options as the contour platform for building and filling contours. In addition it a specialized
crosshair tool that lets you read the triangular axes values.
The chapter “Ternary Plots” of JMP Statistics and Graphics Guide describes the Ternary Plot command
in detail and shows ternary plot examples.
Diagram
The Diagram platform is used to construct Ishikawa charts, also called fishbone charts, or
cause-and-effect diagrams. These charts are useful when organizing the sources (causes) of a problem
(effect), perhaps for brainstorming, or as a preliminary analysis to identify variables in preparation for
further experimentation. See the JMP Statistics and Graphics Guide for examples of Ishikawa charts.
Control Chart
The Control Chart menu has a sub-menu that creates dynamic plots of sample subgroups as they are
received and recorded. Control charts are a graphical analytic tool used for statistical quality
improvement. Control charts can be broadly classified according to the type of data analyzed:
• Control charts for variables are used when the quality characteristic to be analyzed is measured on a
continuous scale.
• Control charts for attributes are used when the quality characteristic is measured by counting the
number of nonconformities (defects) in an item or by counting the number of nonconforming
(defective) items in a sample.
The concepts underlying the control chart are that the natural variability in any process can be
quantified with a set of control limits, and that variation exceeding these limits signals a special cause of
variation. In industry, control charts are commonly used for studying the variation in output from a
manufacturing process. They are typically used to distinguish variation due to special causes from
variation due to common causes.
The control chart platform offers the following types of charts:
• Mean, range, and standard deviation
• Individual measurement and moving range (run chart, XBar Chart, and IR)
• P-chart, NP-chart, C-chart, and U-chart
• UWMA and EWMA
• CUSUM
• Presummarized
• Levey-Jennings
• Multivariate Control Charts
The “Statistical Control Charts” of JMP Statistics and Graphics Guide describes the Control Charts
command in detail.