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Multinomial

Multinomial distribution for categorical data.

Parameters

  • events (Union[dict, list]) – defaults to None

    An optional list of events that already occurred.

Attributes

  • mode

  • n_samples

    The number of observed samples.

Examples

>>> from river import proba

>>> p = proba.Multinomial(['green'] * 3)
>>> p = p.update('red')

>>> p.pmf('red')
0.25

>>> p.update('red').update('red').pmf('green')
0.5

Methods

pmf

Probability mass function.

Parameters

  • x
update

Updates the parameters of the distribution given a new observation.

Parameters

  • x