Data Science SQL

Root mean squared error

SELECT SQRT(AVG(POWER(y - y_pred, 2))) AS rmse FROM ...

Mean absolute error

SELECT AVG(ABS(y - y_pred)) AS mae FROM ...

Mean error

SELECT AVG(y_pred - y) AS me FROM ...

Median - get it here

SELECT MEDIAN(y) FROM ...

Published September 10, 2015 · Tweet


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