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412 JMP Starter Appendix A
The Control Category
characteristic of Pareto plots is that the bars are in descending order of values, which visually
emphasizes the most important measures or frequencies.
The chapter “Pareto Plots” of JMP Statistics and Graphics Guide discusses simple before-and-after
Pareto charts and two-way comparative Pareto charts.
Diagram Clicking the Diagram button on the Measure page, or choosing Graph > Diagram,
constructs Ishikawa charts, also called fishbone charts, or cause-and-effect diagrams. These charts
are useful to organize the sources (causes) of a problem (effect), perhaps for brainstorming, or as
a preliminary analysis to identify variables in preparation for further experimentation.
The chapter “Ishikawa Diagrams” of JMP Statistics and Graphics Guide describes creating these
diagrams.
The Control Category
The Control category, shown in Figure A.10, accesses the commands that are used in statistical quality
control.
Figure A.10 The JMP Starter Control Category
Run Chart Clicking the Run Chart button, or clicking Graph > Control Chart > Run Chart,
gives an overlay of a single numeric or categorical x column and all specified numeric y variables.
XBar Clicking the XBar button offers a combination of X -, R-, and S-charts. The X -chart plots
subgroup means (averages), the R-chart plots subgroup ranges, and the S-chart plots subgroup
standard deviations.
IR Clicking the IR button gives either an individual measurement chart, which displays individual
measurements, or a moving range chart, which displays moving ranges of two or more successive
measurements.