classImbalance

<p>Vector, factor: Labels of outcome. If <code>x</code> has more than 1 column, the last one will be used</p>

<p>Calculate class imbalance as given by:
$$I = K\cdot\sum_{i=1}^K (n_i/N - 1/K)^2$$
where $K$ is the number of classes, and $n_i$ is the number of instances of class $i$</p>

Advanced Machine Learning and Visualization made efficient and accessible. Unsupervised Learning (Clustering, Decomposition), Supervised Learning (Classification, Regression, Survival Analysis), Cross-Decomposition, Bagging, Boosting, Meta-models. Static and dynamic graphs.

Efstathios D. Gennatas

classImbalance: Class Imbalance

Description

Usage

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