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Scoring tag deprecated hence removed, added prediction
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mdewey
mdewey
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added 11 characters in body
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Matthew Drury
Matthew Drury
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I have used penalized logistic regression (R package logistf) to predict probability of a rare event. 0.12% is the event rate i.e., only 35 occurrence of event in the total 29k+ data points.

What is the prediction equation for penalized logistic regression? Is it same has logistic regression i.e., exp(a+bX) / 1 + exp(a+bX)$\frac{\exp(a+bX)}{1 + \exp(a+bX)}$?

I have used penalized logistic regression (R package logistf) to predict probability of a rare event. 0.12% is the event rate i.e., only 35 occurrence of event in the total 29k+ data points.

What is the prediction equation for penalized logistic regression? Is it same has logistic regression i.e., exp(a+bX) / 1 + exp(a+bX)

I have used penalized logistic regression (R package logistf) to predict probability of a rare event. 0.12% is the event rate i.e., only 35 occurrence of event in the total 29k+ data points.

What is the prediction equation for penalized logistic regression? Is it same has logistic regression i.e., $\frac{\exp(a+bX)}{1 + \exp(a+bX)}$?

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Manohar Swamynathan
Manohar Swamynathan
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What is the prediction equation for penalized logistic regression?

I have used penalized logistic regression (R package logistf) to predict probability of a rare event. 0.12% is the event rate i.e., only 35 occurrence of event in the total 29k+ data points.

What is the prediction equation for penalized logistic regression? Is it same has logistic regression i.e., exp(a+bX) / 1 + exp(a+bX)