For more information, see the online learning platform
A cumulative sum chart is commonly used in quality control methods to detect deviations from benchmark values. It is also used to detect deviation of key performance indicator from a benchmark trend.
To create a CUSUM variable:
- Click Transform > CUSUM in the menu.
- Enter CUSUM name. For example: CUSUM-Production.
- Select Record set, if required.
- Select Normalize settings. For more information, see Normalized.
- Select from the Variables list, if required.
- Select Index. Usually the timestamp variable is selected by default.
- Select Variable.
- Click Save.
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Variables are listed alphabetically. To find a variable, use the scroll bar or enter the name in the search field |
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Create a trend to visualize your CUSUM result. |
To create Trend:
- Click More Actions > Create Trend.
- Select another variable from the list, if required. The CUSUM and the timestamp variables are automatically selected.
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In Advanced tab, check the Fill Curves checkbox. It can improve the CUSUM visualization. |
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Check on Gap Analysis page an example with CUSUM analysis. |