Control Limit Format Options on p, u, XbarR and XbarS charts

Choose Between Skyline Limits and Wavy Control Limits

For control charts with varying sample sizes, the control limit lines are not flat horizontal lines. Instead they vary.

QI Macros provides two options for displaying varying control limits.

Skyline Limits (default)
control chart with skyline or flat control limits

Wavy Limits
control chart with wavy limits

To Change the Format on One Chart:

  1. Click on the chart and then click on QI Macros chart menu and select "Convert Skyline to Wave" or vice versa.

  2. QI Macros will change the control limits to the new format.

Yes - its that easy!

To change the QI Macros default from skyline limits to wavy limits:

Click on Control Charts, then Control Chart Rules, then p/u UCL/LCL format.

Thats it. Now all of the p, u, XbarR and XbarS charts you run will have wavy limits.

control chart format options in QI Macros software

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Why Choose QI Macros Over Other Control Chart Software?

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