qiskit/releasenotes/notes/0.17/paul_feature_alpha-1fdba69c...

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---
features:
- |
The :class:`~qiskit.circuit.library.PauliFeatureMap` class in the
:mod:`qiskit.circuit.library` module now supports adjusting the rotational
factor, :math:`\alpha`, by either setting using the kwarg ``alpha`` on
the constructor or setting the
:attr:`~qiskit.circuit.library.PauliFeatureMap.alpha` attribute after
creation. Previously this value was fixed at ``2.0``. Adjusting this
attribute allows for better control of decision boundaries and provides
additional flexibility handling the input features without needing
to explicitly scale them in the data set.