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Feb 10, 2015 8:24 AM
(438 views)

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Feb 10, 2015 10:54 AM
(314 views)

Hello andreas.scherer,

If you have run your model in Stepwise, you should be able to click the "Run Model" button in Stepwise to get a Logistic Regression report for the model chosen in Stepwise. From the Logistic red triangle menu, you can select Confusion Matrix to get a matrix of observations that were correctly and incorrectly classified.

Best,

Michael

Michael Crotty

Sr Statistical Writer

JMP Development

Sr Statistical Writer

JMP Development

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Feb 10, 2015 9:45 PM
(314 views)

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Feb 11, 2015 6:44 AM
(314 views)

Sure. To do that, you would save the Probability Formula in the Logistic regression report red triangle menu. That option will save multiple columns to your data table, but you will be interested in the “Most Likely Y” column (where Y is the name of your response variable).

After you have the most likely column, you can find the ones that are misclassified using row selection. Rows menu -> Row Selection -> Select Where. In the Select Rows window, check the Compare column checkbox and choose the original response column on the left and the most likely column on the right. Make sure to change the middle dropdown to “does not equal” before you click OK.

Best,

Michael

Michael Crotty

Sr Statistical Writer

JMP Development

Sr Statistical Writer

JMP Development