pyhgf.updates.vectorized.volatile.vectorized_layer_volatility_posterior_ehgf#

pyhgf.updates.vectorized.volatile.vectorized_layer_volatility_posterior_ehgf(layer, params)[source]#

EHGF volatility-level posterior update (mean first, then precision).

The eHGF update differs from the standard update in that it updates the mean first using the expected precision as an approximation, and then updates the precision.

This is the vectorized equivalent of pyhgf.updates.posterior.volatile.volatile_node_posterior_update_ehgf.volatile_node_posterior_update_ehgf().

Parameters:

  • layer (LayerState) – Current layer state with volatility_prediction_error set.

  • params (LayerParams) – Layer parameters (provides volatility_coupling).

Returns:

Updated layer state with precision_vol and mean_vol set.

Return type:

LayerState