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logistic-regressionweka

How do I modify the coefficients of a logistic regression model in Weka?

I have previously trained a logistic regression classifier on the Iris data set, and saved the resulting model to a file named iris.model.

I now load the model into the Weka Explorer:

Logistic regression model loaded into Weka

How do I edit the coefficients of this model? For example, I want to change Iris-setosa's sepallength coefficient from 21.8065 to 19.

Solution

  • You can't. Weka's classifiers are data driven and don't offer post-build fine-tuning or manual modifications.