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Tom-Alexander/regression-js

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Function polynomial has a Cognitive Complexity of 20 (exceeds 5 allowed). Consider refactoring.
Open

  polynomial(data, options) {
    const lhs = [];
    const rhs = [];
    let a = 0;
    let b = 0;
Severity: Minor
Found in src/regression.js - 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 polynomial has 53 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  polynomial(data, options) {
    const lhs = [];
    const rhs = [];
    let a = 0;
    let b = 0;
Severity: Major
Found in src/regression.js - About 2 hrs to fix

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

    function gaussianElimination(input, order) {
  const matrix = input;
  const n = input.length - 1;
  const coefficients = [order];
    Severity: Minor
    Found in src/regression.js - 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 3 locations. Consider refactoring.
    Open

        return {
      points,
      predict,
      equation: [coeffA, coeffB],
      string: `y = ${coeffA}e^(${coeffB}x)`,
    Severity: Major
    Found in src/regression.js and 2 other locations - About 1 hr to fix
    src/regression.js on lines 203..209
    src/regression.js on lines 237..243

    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 59.

    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 3 locations. Consider refactoring.
    Open

        return {
      points,
      predict,
      equation: [coeffA, coeffB],
      string: `y = ${coeffA}x^${coeffB}`,
    Severity: Major
    Found in src/regression.js and 2 other locations - About 1 hr to fix
    src/regression.js on lines 170..176
    src/regression.js on lines 203..209

    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 59.

    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 3 locations. Consider refactoring.
    Open

        return {
      points,
      predict,
      equation: [coeffA, coeffB],
      string: `y = ${coeffA} + ${coeffB} ln(x)`,
    Severity: Major
    Found in src/regression.js and 2 other locations - About 1 hr to fix
    src/regression.js on lines 170..176
    src/regression.js on lines 237..243

    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 59.

    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 gaussianElimination has 29 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

    function gaussianElimination(input, order) {
  const matrix = input;
  const n = input.length - 1;
  const coefficients = [order];
    Severity: Minor
    Found in src/regression.js - About 1 hr to fix

      Function exponential has 28 lines of code (exceeds 25 allowed). Consider refactoring.
      Open

        exponential(data, options) {
    const sum = [0, 0, 0, 0, 0, 0];

    for (let n = 0; n < data.length; n++) {
      if (data[n][1] !== null) {
      Severity: Minor
      Found in src/regression.js - About 1 hr to fix

        Function linear has 28 lines of code (exceeds 25 allowed). Consider refactoring.
        Open

          linear(data, options) {
    const sum = [0, 0, 0, 0, 0];
    let len = 0;

    for (let n = 0; n < data.length; n++) {
        Severity: Minor
        Found in src/regression.js - About 1 hr to fix

          Function power has 26 lines of code (exceeds 25 allowed). Consider refactoring.
          Open

            power(data, options) {
    const sum = [0, 0, 0, 0, 0];
    const len = data.length;

    for (let n = 0; n < len; n++) {
          Severity: Minor
          Found in src/regression.js - About 1 hr to fix
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