The evaluation function of the regression model should be the mean square error, why is it negative? - Githubissues

EpistasisLab / tpot

A Python Automated Machine Learning tool that optimizes machine learning pipelines using genetic programming.

http://epistasislab.github.io/tpot/

GNU Lesser General Public License v3.0

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The evaluation function of the regression model should be the mean square error, why is it negative? #1055

Open Slun12 opened 4 years ago

Slun12 commented 4 years ago

The evaluation function of the regression model should be the mean square error, why is it negative?

weixuanfu commented 4 years ago

It is neg_mean_squared_error mentioned in TPOT API. And this follows scikit-learn's scoring name in this link