State Spaces SubPackage

This subpackage implements state space functionality

transitionMatrix.statespaces.statespace module

StateSpace holds information about the stochastic system state space

class transitionMatrix.statespaces.statespace.StateSpace(definition=None, sticky=False, absorbing=None, originator=None, full_name=None, cqs_mapping=None, transition_data=None)

Bases: object

The StateSpace object stores a state space structure as a List of tuples The first two elements of each tuple contain the index (base-0) and label of the state space respectively.

Additional fields reserved for further characterisation

[(index 1, label 1, optional, optional, …),

(index 2, label 2, optional, optional, …)]

Todo

Implement Absorbing States

Todo

Implement in estimators

cqs_map(label)

Produce a CQS for a given input label (the cqs_mapping dictionary must exist)

describe()

Print the State Space description

generic(n=2)

Create a generic state space of size n

get_state_labels()

Return a list of state descriptions

get_states()

Return a list with the set of states

validate_dataset(dataset, labels=None)

Check that a dataset column is consistent with a given state space. The following tests are implemented

1: all the states in dataset exist in the state space description (error otherwise) 2: all the states in state space exist in dataset (warning otherwise) 3: TODO successive states for the same entity are different, unless the Sticky flag is True

Parameters:

• dataset – the dataset to test

• labels – the labels of the state space

Returns:

a list of validation messages