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What are the different grades and how are they calculated?

1. Overall Grade

Codacy gives an overall grade to help you better understand the quality of your repository. Grades range from A to F, A being the highest grade.

Note the grading is performed on a branch level, to give a better understanding of the code quality on a branch basis.

2. Category Grades

Issue classification is as follows:

  • Code Style
  • Compatibility
  • Error Prone
  • Performance
  • Security
  • Unused Code

Every issue impacts the grade of its category. Category grading ranges from 0% - 100%, 100% being the highest grade.

3. File Grades

File grades range from A to F, A being the highest grade.

Grading every file occurs according to the weighted average of the following categories:

  • issues
  • clones
  • complexity
  • coverage (optional)

4. Grade Calculation

Codacy calculates grades based on the number of issues for every thousand lines of code (KLOC). Steve McConnell, in his book 'Code Complete,' wrote about average bugs per LOC:

(a) Industry Average: "about 15–50 errors per 1000 lines of delivered code." He further states this is usually representative of code that has some level of structured programming behind it but probably includes a mix of coding techniques.

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Last modified February 11, 2021