IIRLRegression

class menpofit.math.IIRLRegression(alpha=0, bias=False, alpha2=0)

Bases: IRLRegression

Class for training and applying Indirect Incremental Regularized Linear Regression.

Parameters

• alpha (float, optional) – The regularization parameter.

• bias (bool, optional) – If True, a bias term is used.

• alpha2 (float, optional) – The regularization parameter of the Hessian.

increment(X, Y)

Incrementally update the regression model.

Parameters

• X ((n_features, n_samples) ndarray) – The array of feature vectors.

• Y ((n_dims, n_samples) ndarray) – The array of target vectors.

Raises

ValueError – Model is not incrementable

predict(x)

Makes a prediction using the trained regression model.

Parameters

x ((n_features,) ndarray) – The input feature vector.

Returns

prediction ((n_dims,) ndarray) – The prediction vector.

train(X, Y)

Train the regression model.

Parameters

• X ((n_features, n_samples) ndarray) – The array of feature vectors.

• Y ((n_dims, n_samples) ndarray) – The array of target vectors.