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Similar blocks of code found in 5 locations. Consider refactoring.
Open

        self.kappas_ = np.array(
            [cohen_kappa_score(clf.predict(X[:,subspace]), y)
             for clf, subspace in zip(self.ensemble_,
                                      self.subspaces)]
Severity: Major
Found in strlearn/ensembles/KUE.py and 4 other locations - About 2 hrs to fix
strlearn/ensembles/ROSE.py on lines 174..177
strlearn/ensembles/ROSE.py on lines 179..182
strlearn/ensembles/ROSE.py on lines 187..190
strlearn/ensembles/ROSE.py on lines 192..195

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 53.

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 5 locations. Consider refactoring.
Open

            self.background_accuracies_ = np.array(
                [accuracy_score(clf.predict(X[:,subspace]), y)
                for clf, subspace in zip(self.background_ensemble_,
                                         self.background_subspaces)]
Severity: Major
Found in strlearn/ensembles/ROSE.py and 4 other locations - About 2 hrs to fix
strlearn/ensembles/KUE.py on lines 93..96
strlearn/ensembles/ROSE.py on lines 174..177
strlearn/ensembles/ROSE.py on lines 179..182
strlearn/ensembles/ROSE.py on lines 187..190

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 53.

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 5 locations. Consider refactoring.
Open

        self.kappas_ = np.array(
            [cohen_kappa_score(clf.predict(X[:,subspace]), y)
             for clf, subspace in zip(self.ensemble_,
                                      self.subspaces)]
Severity: Major
Found in strlearn/ensembles/ROSE.py and 4 other locations - About 2 hrs to fix
strlearn/ensembles/KUE.py on lines 93..96
strlearn/ensembles/ROSE.py on lines 179..182
strlearn/ensembles/ROSE.py on lines 187..190
strlearn/ensembles/ROSE.py on lines 192..195

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 53.

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 partial_fit has a Cognitive Complexity of 17 (exceeds 5 allowed). Consider refactoring.
Open

    def partial_fit(self, X, y, classes=None):
        super().partial_fit(X, y, classes)
        if not self.green_light:
            return self
Severity: Minor
Found in strlearn/ensembles/KUE.py - About 2 hrs 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 5 locations. Consider refactoring.
Open

            self.background_kappas_ = np.array(
                [cohen_kappa_score(clf.predict(X[:,subspace]), y)
                for clf, subspace in zip(self.background_ensemble_,
                                         self.background_subspaces)]
Severity: Major
Found in strlearn/ensembles/ROSE.py and 4 other locations - About 2 hrs to fix
strlearn/ensembles/KUE.py on lines 93..96
strlearn/ensembles/ROSE.py on lines 174..177
strlearn/ensembles/ROSE.py on lines 179..182
strlearn/ensembles/ROSE.py on lines 192..195

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 53.

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 5 locations. Consider refactoring.
Open

        self.accuracies_ = np.array(
            [accuracy_score(clf.predict(X[:,subspace]), y)
             for clf, subspace in zip(self.ensemble_,
                                      self.subspaces)]
Severity: Major
Found in strlearn/ensembles/ROSE.py and 4 other locations - About 2 hrs to fix
strlearn/ensembles/KUE.py on lines 93..96
strlearn/ensembles/ROSE.py on lines 174..177
strlearn/ensembles/ROSE.py on lines 187..190
strlearn/ensembles/ROSE.py on lines 192..195

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 53.

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

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

        if len(self.ensemble_) > self.n_estimators:
            worst_idx = np.argmin(self.weights_)
            del self.ensemble_[worst_idx]
            del self.weights_[worst_idx]
Severity: Major
Found in strlearn/ensembles/AUE.py and 1 other location - About 2 hrs to fix
strlearn/ensembles/AWE.py on lines 49..52

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 53.

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

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

        if len(self.ensemble_) > self.n_estimators:
            worst_idx = np.argmin(self.weights_)
            del self.ensemble_[worst_idx]
            del self.weights_[worst_idx]
Severity: Major
Found in strlearn/ensembles/AWE.py and 1 other location - About 2 hrs to fix
strlearn/ensembles/AUE.py on lines 52..55

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 53.

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

def geometric_mean_score_2(y_true, y_pred):
    """
    Calculates the geometric mean score.

    The alternative definition of G-mean measure. For binary classification G-mean is denoted as the squared root of the product of the recall and precision.
Severity: Major
Found in strlearn/metrics/base.py and 1 other location - About 2 hrs to fix
strlearn/metrics/base.py on lines 184..203

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 52.

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

def geometric_mean_score_1(y_true, y_pred):
    """
    Calculates the geometric mean score.

    The geometric mean (G-mean) tries to maximize the accuracy on each of the classes while keeping these accuracies balanced. For N-class problems it is a N root of the product of class-wise recall. For binary classification G-mean is denoted as the squared root of the product of the recall and specificity.
Severity: Major
Found in strlearn/metrics/base.py and 1 other location - About 2 hrs to fix
strlearn/metrics/base.py on lines 206..224

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 52.

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 partial_fit has a Cognitive Complexity of 16 (exceeds 5 allowed). Consider refactoring.
Open

    def partial_fit(self, X, y, classes=None):
        super().partial_fit(X, y, classes)
        if not self.green_light:
            return self
Severity: Minor
Found in strlearn/ensembles/UOB.py - About 2 hrs 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 partial_fit has a Cognitive Complexity of 16 (exceeds 5 allowed). Consider refactoring.
Open

    def partial_fit(self, X, y, classes=None):
        super().partial_fit(X, y, classes)
        if not self.green_light:
            return self
Severity: Minor
Found in strlearn/ensembles/OOB.py - About 2 hrs 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 __init__ has 16 arguments (exceeds 4 allowed). Consider refactoring.
Open

    def __init__(
Severity: Major
Found in strlearn/streams/StreamGenerator.py - About 2 hrs to fix

    Function partial_fit has a Cognitive Complexity of 15 (exceeds 5 allowed). Consider refactoring.
    Open

        def partial_fit(self, X, y, classes=None):
        super().partial_fit(X, y, classes)
        if not self.green_light:
            return self
    Severity: Minor
    Found in strlearn/ensembles/DWM.py - 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 process has a Cognitive Complexity of 15 (exceeds 5 allowed). Consider refactoring.
    Open

        def process(self, stream, clfs, interval=100):
        """
        Perform learning procedure on data stream.

        :param stream: Data stream as an object
    Severity: Minor
    Found in strlearn/evaluators/Prequential.py - 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 get_chunk has a Cognitive Complexity of 14 (exceeds 5 allowed). Consider refactoring.
    Open

        def get_chunk(self):
        """
        Generating a data chunk of a stream.

        Used by all evaluators but also accesible for custom evaluation.
    Severity: Minor
    Found in strlearn/streams/ARFFParser.py - 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 process has a Cognitive Complexity of 13 (exceeds 5 allowed). Consider refactoring.
    Open

        def process(self, stream, clfs):
        """
        Perform learning procedure on data stream.

        :param stream: Data stream as an object
    Severity: Minor
    Found in strlearn/evaluators/SparseTrainDenseTest.py - 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

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

            sigma = 1/(1 + np.exp(-a*(t-k-b)))
    Severity: Major
    Found in strlearn/ensembles/NIE.py and 1 other location - About 1 hr to fix
    strlearn/ensembles/CDS.py on lines 80..80

    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 45.

    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

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

                sigma = 1/(1 + np.exp(-a*(t-k-b)))
    Severity: Major
    Found in strlearn/ensembles/CDS.py and 1 other location - About 1 hr to fix
    strlearn/ensembles/NIE.py on lines 62..62

    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 45.

    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

    Identical blocks of code found in 5 locations. Consider refactoring.
    Open

            if not hasattr(self, "minority_name") or not hasattr(self, "majority_name"):
            self.minority_name, self.majority_name = self.minority_majority_name(y)
    Severity: Major
    Found in strlearn/ensembles/REA.py and 4 other locations - About 1 hr to fix
    strlearn/ensembles/CDS.py on lines 29..30
    strlearn/ensembles/KMC.py on lines 31..32
    strlearn/ensembles/NIE.py on lines 28..29
    strlearn/ensembles/OUSE.py on lines 56..57

    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 45.

    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

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