Specify Boundaries For
On the 2D Histograms Startup Panel - Advanced tab, select the Boundaries option button in the Intervals group box, and then click the Specify Boundaries button to display the Specify Boundaries for dialog box.
- Specify boundary range
- Select the Specify boundary range option button, and enter the Minimum, Interval, and Maximum. This sets the binning ranges for a histogram. The ’min/max/step’ option will be expressed as continuous rather than using the discrete ’boundaries’ approach. This will allow distributional fits to be used for this method.
- Enter Boundaries
- Select the Enter Boundaries option button, and in the adjacent box, enter a list of the desired boundaries for the selected variable. For example, if you enter 1 3 4 9, the following five ranges (i.e., categories) of values of the selected variable will be created:
- x<=1
- 1<x<=3
- 3<x<=4
- 4<x<=9
- 9<x
As you can see from this example, the intervals do not have to be of equal width, but the boundaries do need to be of consecutive numbers (e.g., 1 3 9, not 1 3 1 9).
Definition. The Enter Boundaries option (see above) will apply to the selection here; either Upper boundaries or Lower boundaries.
Variables. Click this button to display a variable selection dialog box, where you select the variables to be binned.
- OK
- Click the OK button to accept the entries and return to the 2D Histograms Startup Panel.
- Cancel
- Click the Cancel button to close this dialog box without specifying any boundaries.
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