Elementary Cellular Automata¶
The neet.boolean.ECA
class describes an Elementary Cellular Automaton with an
arbitrary rule.

class
neet.boolean.
ECA
(code, size, boundary=None, names=None, metadata=None)[source]¶ ECA represents an elementary cellular automaton rule. Each ECA contains an 8bit integral member variable
code
representing the Wolfram code for the ECA rule and a set of boundary conditions which is eitherNone
, signifying periodic boundary conditions, or a pair of cell states signifying fixed, open boundary conditions. As with allneet.Network
classes, the names of the nodes and networkwide metadata can be provided.In addition to all inherited methods, ECA exposes the following properites:
code
The Wolfram code of the elementary cellular automaton. boundary
The boundary conditions of the elemenary cellular automaton. Parameters: Raises:  ValueError – if
code
is not in \(\{0,1,\ldots,255\}\)  ValueError – if
boundary
is a neitherNone
nor a pair of binary states

code
¶ The Wolfram code of the elementary cellular automaton.
Examples
>>> eca = ECA(30, size=5) >>> eca.code 30 >>> eca.code = 45 >>> eca.code 45 >>> eca.code = 256 Traceback (most recent call last): ... ValueError: invalid ECA code
Type: int Raises: ValueError – if code
is not in \(\{0,1,\ldots,255\}\)

boundary
¶ The boundary conditions of the elemenary cellular automaton.
Examples
>>> eca = ECA(30, size=5) >>> eca.boundary >>> eca.boundary = (0, 1) >>> eca.boundary (0, 1) >>> eca.boundary = None >>> eca.boundary >>> eca.boundary = [0, 1] Traceback (most recent call last): ... TypeError: ECA boundary are neither None nor a tuple
Type: tuple, None Raises: ValueError – if boundary
is a neitherNone
nor a pair of binary states
 ValueError – if