Parameters | Subgroup Analysis | Minimum Number of Observations Required for a Categorical Value

Minimum Number of Observations Required for a Categorical Value
Use this option to specify the minimum sample size of any one categorical value.
This is useful in cases where you have categories with only a few observations and want to eliminate them from consideration.
To Specify the Minimum Number of Observations:
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Tip: To change the scale of the slider, right-click on the slider and select Rescale Slider from the pop-up menu. Change the upper and/or lower boundaries in the window that appears, to rescale the slider and click OK.