brainconn.physical_connectivity
.density_dir¶
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density_dir
(CIJ)[source]¶ Density is the fraction of present connections to possible connections.
Parameters: CIJ (NxN numpy.ndarray
) – directed weighted/binary connection matrixReturns: - kden (float) – density
- N (int) – number of vertices
- k (int) – number of edges
Notes
Assumes CIJ is directed and has no self-connections. Weight information is discarded.