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PyPhi: A toolbox for integrated information theory

Fig 2

A network of nodes and its TPM.

Each node has its own TPM—in this case, the truth-table of a deterministic logic gate. Yellow signifies the “ON” state; white signifies “OFF”. The system’s TPM (right) is composed of the TPMs of its nodes (left), here shown in state-by-node form (see § Representation of the TPM and probability distributions). Note that in PyPhi’s TPM representation, the first node’s state varies the fastest, according to the little-endian convention (see § 2-dimensional state-by-node form).

Fig 2

doi: https://doi.org/10.1371/journal.pcbi.1006343.g002