halstead1
Program that estimates module complexity.
Usage
halstead files ...
Overview
halstead provides various indicators of the module's complexity. The module is examined to determine the following:
n1 == number of unique operators
n2 == number of unique operands
N1 == number of total operators
N2 == number of total operands
The program outputs these fields:
File Name
Program Length (N = N1 + N2)
Program Volume (V = N log<base2> (n1 + n2))
Program Level (L = (2/n1) * (n2/N2))
Mental Discriminations (E^ = V / L)
The program volume (aka ``Halstead Volume'') is probably most useful and seems to be reasonably well correlated with error counts for modules.