Contraction

This function returns the ratio between Euclidean distance of a branch and its path length.

Function Output Type : Real

Calculated : At each bifurcation point

Returns a value : For each branch

Command Line Usage Function : "-f23, 0, 0, 10.0"

Output:

Metric	Total_Sum	#Compartments (considered)	#Compartments (discarded)	Minimum	Average	Maximum	S.D.
Contraction	84.1387	85	(1017)	0.887291	0.989867	1	0.019264

*All units are ratios

Values to consider : All

Output Interpretation :

Contraction can be calculated as ratio of Euclidean distance (AE) and Path Length (AB+BC+CD+DE).

Total_Sum = 84.1387 gives Total_Sum, Minimum = 0.887291 gives minimum, Maximum = 1 gives maximum for given input neuron.

References :

Closer is the value towards 1, lesser is the contraction. Closer is the value towards 0, more is the contraction.