mxfusion.components.distributions.categorical¶
Members¶
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class
mxfusion.components.distributions.categorical.
Categorical
(log_prob, num_classes, one_hot_encoding=False, normalization=True, axis=-1, rand_gen=None, dtype=None, ctx=None)¶ Bases:
mxfusion.components.distributions.univariate.UnivariateDistribution
The Categorical distribution.
Parameters: - log_prob (Variable) – the logarithm of the probability being in each of the classes.
- num_classes (int) – the number of classes.
- one_hot_encoding (boolean) – If true, the random variable is one-hot encoded.
- normalization (boolean) – If true, a softmax normalization is applied.
- axis (int) – the axis in which the categorical distribution is assumed (default: -1).
- rand_gen (RandomGenerator) – the random generator (default: MXNetRandomGenerator).
- dtype (numpy.float32 or numpy.float64) – the data type for float point numbers.
- ctx (None or mxnet.cpu or mxnet.gpu) – the mxnet context (default: None/current context).
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replicate_self
(attribute_map=None)¶ This functions as a copy constructor for the object. In order to do a copy constructor we first call
__new__
on the class which creates a blank object. We then initialize that object using the methods standard init procedures, and do any extra copying of attributes.Replicates this Factor, using new inputs, outputs, and a new uuid. Used during model replication to functionally replicate a factor into a new graph.
Parameters:
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log_pdf_impl
(log_prob, random_variable, F=None)¶ Computes the logarithm of probabilistic mass function of the Categorical distribution.
Parameters: - F – MXNet computation type <mx.sym, mx.nd>.
- log_prob (MXNet NDArray or MXNet Symbol) – the logarithm of the probability being in each of the classes.
- random_variable (MXNet NDArray or MXNet Symbol) – the point to compute the log pdf for.
Returns: log pdf of the distribution.
Rtypes: MXNet NDArray or MXNet Symbol
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draw_samples_impl
(log_prob, rv_shape, num_samples=1, F=None)¶ Draw a number of samples from the Categorical distribution.
Parameters: Returns: a set samples of the Categorical distribution
Rtypes: MXNet NDArray or MXNet Symbol
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static
define_variable
(log_prob, num_classes, shape=None, one_hot_encoding=False, normalization=True, axis=-1, rand_gen=None, dtype=None, ctx=None)¶ Creates and returns a random variable drawn from a Categorical distribution.
Parameters: - log_prob (Variable) – the logarithm of the probability being in each of the classes.
- num_classes (int) – the number of classes.
- shape (tuple of int) – the shape of the Categorical variable.
- one_hot_encoding (boolean) – If true, the random variable is one-hot encoded.
- normalization (boolean) – If true, a softmax normalization is applied.
- axis (int) – the axis in which the categorical distribution is assumed (default: -1).
- rand_gen (RandomGenerator) – the random generator (default: MXNetRandomGenerator).
- dtype (numpy.float32 or numpy.float64) – the data type for float point numbers.
- ctx (None or mxnet.cpu or mxnet.gpu) – the mxnet context (default: None/current context).
Returns: RandomVariable drawn from the Categorical distribution.
Rtypes: Variable