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Basic Analysis and Graphing - SAS

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218 Performing Simple Logistic Regression Chapter 7<br />

Example of Nominal Logistic Regression<br />

1. Open the Penicillin.jmp sample data table.<br />

2. Select Analyze > Fit Y by X.<br />

3. Select Response <strong>and</strong> click Y, Response.<br />

4. Select In(Dose) <strong>and</strong> click X, Factor.<br />

Notice that JMP automatically fills in Count for Freq. Count was previously assigned the role of Freq.<br />

5. Click OK.<br />

Figure 7.2 Example of Nominal Logistic Report<br />

The plot shows the fitted model, which is the predicted probability of being cured, as a function of ln<br />

(dose). The p-value is significant, indicating that the dosage amounts have a significant effect on whether<br />

the rabbits are cured.

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