pyeeg.features.FeatureReducer.inverse_transform

FeatureReducer.inverse_transform(reduced_features: ndarray) → ndarray

Transform reduced features back to original space.

Reconstructs data in the original feature space by projecting the reduced features back onto the fitted components and adding back the fitted mean. With method='none', the input is returned unchanged.

Parameters:

reduced_features (ndarray) – 2D array of shape (n_samples, n_components) of reduced features.

Returns:

features – 2D array of shape (n_samples, n_features) reconstructed in the original feature space, or the input unchanged for method='none'.

Return type:

ndarray

Raises:

• RuntimeError – If the reducer has not been fitted (call fit() first).

• ValueError – If self.config.method is not one of "pca", "ica", or "none".