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MaxHalford/eaopt

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Showing 15 of 15 total issues

Function rebalanceClusters has a Cognitive Complexity of 26 (exceeds 20 allowed). Consider refactoring.
Open

func rebalanceClusters(clusters []Individuals, dm DistanceMemoizer, minPerCluster uint) error {
    // Calculate the number of missing Individuals per cluster for each cluster
    // to reach at least minPerCluster Individuals.
    var missing = make([]int, len(clusters))
    for i, cluster := range clusters {
Severity: Minor
Found in distance.go - About 1 hr to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Similar blocks of code found in 2 locations. Consider refactoring.
Open

func (mod ModSteadyState) Validate() error {
    // Check the selection method presence
    if mod.Selector == nil {
        return errNilSelector
    }
Severity: Major
Found in models.go and 1 other location - About 1 hr to fix
models.go on lines 84..103

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 142.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Similar blocks of code found in 2 locations. Consider refactoring.
Open

func (mod ModGenerational) Validate() error {
    // Check the selection method presence
    if mod.Selector == nil {
        return errNilSelector
    }
Severity: Major
Found in models.go and 1 other location - About 1 hr to fix
models.go on lines 155..174

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 142.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Function CrossERX has a Cognitive Complexity of 25 (exceeds 20 allowed). Consider refactoring.
Open

func CrossERX(p1, p2 Slice) {
    var (
        n            = p1.Len()
        o1           = p1.Copy()
        o2           = p2.Copy()
Severity: Minor
Found in crossover.go - About 1 hr to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function CrossERX has 51 lines of code (exceeds 50 allowed). Consider refactoring.
Open

func CrossERX(p1, p2 Slice) {
    var (
        n            = p1.Len()
        o1           = p1.Copy()
        o2           = p2.Copy()
Severity: Minor
Found in crossover.go - About 1 hr to fix

    Method GAConfig.NewGA has 10 return statements (exceeds 4 allowed).
    Open

    func (conf GAConfig) NewGA() (*GA, error) {
    // Check for default values
    if conf.RNG == nil {
        conf.RNG = rand.New(rand.NewSource(time.Now().UnixNano()))
    }
    Severity: Major
    Found in ga_config.go - About 1 hr to fix

      Method ModDownToSize.Validate has 7 return statements (exceeds 4 allowed).
      Open

      func (mod ModDownToSize) Validate() error {
    // Check the number of offsprings value
    if mod.NOffsprings <= 0 {
        return errors.New("NOffsprings has to higher than 0")
    }
      Severity: Major
      Found in models.go - About 45 mins to fix

        Method GA.evolve has 6 return statements (exceeds 4 allowed).
        Open

        func (ga *GA) evolve() error {
    var start = time.Now()
    ga.Generations++

    // Migrate the individuals between the populations if there are at least 2
        Severity: Major
        Found in ga.go - About 40 mins to fix

          Similar blocks of code found in 2 locations. Consider refactoring.
          Open

                  } else {
            o1.Slice(indexes[i], indexes[i+1]).Replace(p2.Slice(indexes[i], indexes[i+1]))
            o2.Slice(indexes[i], indexes[i+1]).Replace(p1.Slice(indexes[i], indexes[i+1]))
        }
          Severity: Minor
          Found in crossover.go and 1 other location - About 40 mins to fix
          crossover.go on lines 39..42

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 108.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 2 locations. Consider refactoring.
          Open

                  if toggle {
            o1.Slice(indexes[i], indexes[i+1]).Replace(p1.Slice(indexes[i], indexes[i+1]))
            o2.Slice(indexes[i], indexes[i+1]).Replace(p2.Slice(indexes[i], indexes[i+1]))
        } else {
          Severity: Minor
          Found in crossover.go and 1 other location - About 40 mins to fix
          crossover.go on lines 42..45

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 108.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Function generateOffsprings has 5 arguments (exceeds 4 allowed). Consider refactoring.
          Open

          func generateOffsprings(n uint, indis Individuals, sel Selector, crossRate float64,
    rng *rand.Rand) (Individuals, error) {
          Severity: Minor
          Found in models.go - About 35 mins to fix

            Function NewOES has 5 return statements (exceeds 4 allowed).
            Open

            func NewOES(nPoints, nSteps uint, sigma, lr float64, parallel bool, rng *rand.Rand) (*OES, error) {
    // Check inputs
    if nPoints < 3 {
        return nil, errors.New("nPoints should be at least 3")
    }
            Severity: Major
            Found in oes.go - About 35 mins to fix

              Method ModGenerational.Validate has 5 return statements (exceeds 4 allowed).
              Open

              func (mod ModGenerational) Validate() error {
    // Check the selection method presence
    if mod.Selector == nil {
        return errNilSelector
    }
              Severity: Major
              Found in models.go - About 35 mins to fix

                Method ModSteadyState.Validate has 5 return statements (exceeds 4 allowed).
                Open

                func (mod ModSteadyState) Validate() error {
    // Check the selection method presence
    if mod.Selector == nil {
        return errNilSelector
    }
                Severity: Major
                Found in models.go - About 35 mins to fix

                  Your code does not pass gofmt in 1 place. Go fmt your code!
                  Open

                  package eaopt
                  Severity: Minor
                  Found in individuals.go by gofmt
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