Package topo :: Package numbergen :: Module basic :: Class RandomDistribution

Class RandomDistribution

Python's random module provides the Random class, which can be instantiated to give an object that can be asked to generate numbers from any of several different random distributions (e.g. uniform, Gaussian).

To make it easier to use these, Topographica provides here a hierarchy of classes, each tied to a particular random distribution. This allows setting parameters on creation rather than passing them each call, and allows pickling to work properly.

The underlying random.Random() instance and all its methods can be accessed from the 'random_generator' attribute.

Nested Classes

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Inherited from param.parameterized.Parameterized: __metaclass__

Instance Methods

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__init__(self, **params)
Initialize a new Random() instance and store the supplied positional and keyword arguments.

source code

__call__(self)

source code

Inherited from NumberGenerator: __abs__, __add__, __div__, __floordiv__, __mod__, __mul__, __neg__, __pos__, __pow__, __radd__, __rdiv__, __rfloordiv__, __rmod__, __rmul__, __rpow__, __rsub__, __rtruediv__, __sub__, __truediv__

Inherited from param.parameterized.Parameterized: __getstate__, __repr__, __setstate__, __str__, debug, defaults, force_new_dynamic_value, get_param_values, get_value_generator, inspect_value, message, print_param_values, script_repr, set_default, set_dynamic_time_fn, set_param, state_pop, state_push, verbose, warning

Inherited from param.parameterized.Parameterized (private): _add_parameter, _instantiate_param, _set_name, _setup_params

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __setattr__, __sizeof__, __subclasshook__

Class Methods

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Inherited from param.parameterized.Parameterized: params, print_param_defaults

Class Variables

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__abstract = True
bool(x) -> bool

name = <param.parameterized.String object at 0xb1ff42c>
String identifier for this object.

Inherited from param.parameterized.Parameterized: print_level

Properties

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Inherited from object: __class__

Method Details

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init(self, **params)
(Constructor)

source code

Initialize a new Random() instance and store the supplied positional and keyword arguments.

If seed=X is specified, sets the Random() instance's seed. Otherwise, calls the instance's jumpahead() method to get a state very likely to be different from any just used.

Overrides: object.__init__

call(self)
(Call operator)

source code

Overrides: NumberGenerator.__call__

Class Variable Details

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__abstract

bool(x) -> bool

Returns True when the argument x is true, False otherwise. The builtins True and False are the only two instances of the class bool. The class bool is a subclass of the class int, and cannot be subclassed.

Value:

True

Class RandomDistribution

__init__(self, **params) (Constructor)

__call__(self) (Call operator)

__abstract

init(self, **params)
(Constructor)

call(self)
(Call operator)