# Why is there no analytic solution for logistic regression? [duplicate]

Possible Duplicate:
When is logistic regression solved in closed form?

Why is there no analytic solution for logistic regression? I was trying to derive a solution similar to the normal equations of linear regression, and I am not sure where it goes wrong. Please provide a mathematical proof.

## merged by whuber♦Sep 20 '12 at 13:42

This question was merged with When is logistic regression solved in closed form? because it is an exact duplicate of that question.