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nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/evaluation/classification/ROC.java

Summary

Maintainability
F
5 days
Test Coverage

File ROC.java has 578 lines of code (exceeds 250 allowed). Consider refactoring.
Open

/*
 *  ******************************************************************************
 *  *
 *  *
 *  * This program and the accompanying materials are made available under the
Severity: Major
Found in nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/evaluation/classification/ROC.java - About 1 day to fix

    Method eval has a Cognitive Complexity of 31 (exceeds 5 allowed). Consider refactoring.
    Open

        @Override
    public void eval(INDArray labels, INDArray predictions, INDArray mask, List<? extends Serializable> recordMetaData) {

        Triple<INDArray, INDArray, INDArray> p = BaseEvaluation.reshapeAndExtractNotMasked(labels, predictions, mask, axis);
        if (p == null) {
    Severity: Minor
    Found in nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/evaluation/classification/ROC.java - About 4 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

    Method eval has 107 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

        @Override
    public void eval(INDArray labels, INDArray predictions, INDArray mask, List<? extends Serializable> recordMetaData) {

        Triple<INDArray, INDArray, INDArray> p = BaseEvaluation.reshapeAndExtractNotMasked(labels, predictions, mask, axis);
        if (p == null) {
    Severity: Major
    Found in nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/evaluation/classification/ROC.java - About 4 hrs to fix

      Method getPrecisionRecallCurve has 102 lines of code (exceeds 25 allowed). Consider refactoring.
      Open

          public PrecisionRecallCurve getPrecisionRecallCurve() {

        if (prCurve != null) {
            return prCurve;
        }
      Severity: Major
      Found in nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/evaluation/classification/ROC.java - About 4 hrs to fix

        Method getPrecisionRecallCurve has a Cognitive Complexity of 18 (exceeds 5 allowed). Consider refactoring.
        Open

            public PrecisionRecallCurve getPrecisionRecallCurve() {

        if (prCurve != null) {
            return prCurve;
        }
        Severity: Minor
        Found in nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/evaluation/classification/ROC.java - 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

        Method removeRedundant has a Cognitive Complexity of 18 (exceeds 5 allowed). Consider refactoring.
        Open

            private static Pair<double[][], int[][]> removeRedundant(double[] threshold, double[] x, double[] y, int[] tpCount,
                                                             int[] fpCount, int[] fnCount) {
        double[] t_compacted = new double[threshold.length];
        double[] x_compacted = new double[x.length];
        double[] y_compacted = new double[y.length];
        Severity: Minor
        Found in nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/evaluation/classification/ROC.java - 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

        ROC has 21 methods (exceeds 20 allowed). Consider refactoring.
        Open

        @EqualsAndHashCode(callSuper = true,
        exclude = {"auc", "auprc", "probAndLabel", "exactAllocBlockSize", "rocCurve", "prCurve", "axis"})
@Data
@JsonIgnoreProperties({"probAndLabel", "exactAllocBlockSize"})
@JsonSerialize(using = ROCSerializer.class)
        Severity: Minor
        Found in nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/evaluation/classification/ROC.java - About 2 hrs to fix

          Method getRocCurve has 51 lines of code (exceeds 25 allowed). Consider refactoring.
          Open

              public RocCurve getRocCurve() {
        if (rocCurve != null) {
            return rocCurve;
        }
          Severity: Major
          Found in nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/evaluation/classification/ROC.java - About 2 hrs to fix

            Method removeRedundant has 47 lines of code (exceeds 25 allowed). Consider refactoring.
            Open

                private static Pair<double[][], int[][]> removeRedundant(double[] threshold, double[] x, double[] y, int[] tpCount,
                                                             int[] fpCount, int[] fnCount) {
        double[] t_compacted = new double[threshold.length];
        double[] x_compacted = new double[x.length];
        double[] y_compacted = new double[y.length];
            Severity: Minor
            Found in nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/evaluation/classification/ROC.java - About 1 hr to fix

              Method merge has 39 lines of code (exceeds 25 allowed). Consider refactoring.
              Open

                  @Override
    public void merge(ROC other) {
        if (this.thresholdSteps != other.thresholdSteps) {
            throw new UnsupportedOperationException(
                    "Cannot merge ROC instances with different numbers of threshold steps ("
              Severity: Minor
              Found in nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/evaluation/classification/ROC.java - About 1 hr to fix

                Method merge has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.
                Open

                    @Override
    public void merge(ROC other) {
        if (this.thresholdSteps != other.thresholdSteps) {
            throw new UnsupportedOperationException(
                    "Cannot merge ROC instances with different numbers of threshold steps ("
                Severity: Minor
                Found in nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/evaluation/classification/ROC.java - 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

                Method removeRedundant has 6 arguments (exceeds 4 allowed). Consider refactoring.
                Open

                    private static Pair<double[][], int[][]> removeRedundant(double[] threshold, double[] x, double[] y, int[] tpCount,
                                                             int[] fpCount, int[] fnCount) {
                Severity: Minor
                Found in nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/evaluation/classification/ROC.java - About 45 mins to fix

                  Method getRocCurve has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.
                  Open

                      public RocCurve getRocCurve() {
        if (rocCurve != null) {
            return rocCurve;
        }
                  Severity: Minor
                  Found in nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/evaluation/classification/ROC.java - About 35 mins 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

                              for (int i = 0; i <= thresholdSteps; i++) {
                double currThreshold = i * step;
                counts.put(currThreshold, new CountsForThreshold(currThreshold));
            }
                  Severity: Minor
                  Found in nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/evaluation/classification/ROC.java and 1 other location - About 35 mins to fix
                  nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/evaluation/classification/ROC.java on lines 781..784

                  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 44.

                  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

                                  boolean ommitSameY = y[i - 1] == y[i] && y[i] == y[i + 1];
                  Severity: Minor
                  Found in nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/evaluation/classification/ROC.java and 1 other location - About 35 mins to fix
                  nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/evaluation/classification/ROC.java on lines 319..319

                  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 44.

                  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

                                  boolean ommitSameX = x[i - 1] == x[i] && x[i] == x[i + 1];
                  Severity: Minor
                  Found in nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/evaluation/classification/ROC.java and 1 other location - About 35 mins to fix
                  nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/evaluation/classification/ROC.java on lines 318..318

                  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 44.

                  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

                              for (int i = 0; i <= thresholdSteps; i++) {
                double currThreshold = i * step;
                counts.put(currThreshold, new CountsForThreshold(currThreshold));
            }
                  Severity: Minor
                  Found in nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/evaluation/classification/ROC.java and 1 other location - About 35 mins to fix
                  nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/evaluation/classification/ROC.java on lines 141..144

                  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 44.

                  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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