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Distribution Analysis: Descriptive Statistics

Plots Tab

You can use the Plots tab to create a histogram and a box plot of the chosen variable. (See Figure 13.5.)

The histogram can include a kernel density estimate. You can determine the bandwidth for the kernel density method by selecting an option from the Selection method list. The options are as follows:

MISE


specifies that the kernel bandwidth is chosen to minimize an approximate mean integrated square error.

Sheather-Jones


specifies that the kernel bandwidth is chosen by a plug-in formula of Sheather and Jones (Jones, Marron, and Sheather; 1996).

Manual


sets the kernel bandwidth to the value of the Bandwidth box.

Figure 13.5 Selecting Plots
Selecting Plots

Note:SAS/IML Studio adds a kernel density estimate to an existing histogram when both of the following conditions are satisfied:

  • The histogram is the active window when you select the analysis.

  • The histogram variable and the analysis variable are the same.

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