Ad

Saturday, March 11, 2017

R Squared Coefficient of Determination - Machine Learning Concept

*coefficient of determination*](http://stattrek.com/statistics/dictionary.aspx?definition=coefficient_of_determination)

R^2
R<sup>2</sup>

coefficient of determination
useful statistics for regression analysis
measures how good the model makes prediction.


R^2 range {0, 1}
can be negative, arbitrarily worse
percentage of square correlection between predicted and actual values of target variable

indicates what percentage of the target variable, using this model, can be explained by the **features**.


r2_score from sklearn.metrics

No comments:

Post a Comment

Codecademy - Machine Learning Fundamentals - Syllabus

Upgrade your skills with Codecademy's Pro Intensive, Machine Learning Fundamentals. Each unit will cover conceptual and syntax lessons ...