object

mi_metric(Stroud)

• Stroud - Halstead metric coefficient for computing the time required to program.

Computes the maintainability index metric based on the Cyclomatic Complexity, Halstead Volume, and lines of code metrics for an entity.

Availability:

logtalk_load(code_metrics(loader))

Author: Paulo Moura

Version: 1:0:0

Date: 2026-03-14

Compilation flags:

static, context_switching_calls

Imports:

public code_metrics_utilities

public code_metric

Uses:

cc_metric

halstead_metric(Stroud)

lines_metric

Remarks:

• Formula: The original equation is used: MI = 171 - 5.2 * ln(V) - 0.23 * C - 16.2 * ln(L). V is the Halstead volume, C is the Cyclomatic Complexity, and L is the number of code lines.

• Entity score: Represented as the compound term mi(MI).

Inherited public predicates:

 all/0  all/1  all_score/1  check_option/1  check_options/1  default_option/1  default_options/1  directory/1  directory/2  directory_score/2  entity/1  entity_score/2  file/1  file/2  file_score/2  format_entity_score//2  library/1  library/2  library_score/2  option/2  option/3  rdirectory/1  rdirectory/2  rdirectory_score/2  rlibrary/1  rlibrary/2  rlibrary_score/2  valid_option/1  valid_options/1

Public predicates

(no local declarations; see entity ancestors if any)

Protected predicates

(no local declarations; see entity ancestors if any)

Private predicates

(no local declarations; see entity ancestors if any)

Operators

(none)