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Data Science Interview Challenge
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Data Science Interview Challenge

Data Science Interview Challenge

1. Python
IntroductionChallenge 1: List ComprehensionChallenge 2: String ManipulationChallenge 3: Dictionary ManipulationChallenge 4: Nested LoopsChallenge 5: ClassesTheoretical Questions
2. NumPy
Challenge 1: Array CreationChallenge 2: Array ManipulationChallenge 3: Statistical InsightsChallenge 4: Handling Missing ValuesChallenge 5: Subarray SortingTheoretical Questions
3. Pandas
Challenge 1: DataFrame CreationChallenge 2: Data GroupingChallenge 3: Indexing and MultiIndexingChallenge 4: Altering DataFrameChallenge 5: Iterating Over DataTheoretical Questions
4. Matplotlib
Challenge 1: Fundamentals of PlottingChallenge 2: Other Graph TypesChallenge 3: SubplotsChallenge 4: Customizing PlotsChallenge 5: Adding Text to PlotsTheoretical Questions
5. Seaborn
Challenge 1: Visualizing DistributionsChallenge 2: Exploring Categorical DataChallenge 3: Relational PlotsChallenge 4: Regression PlotsChallenge 5: Matrix PlotsTheoretical Questions
6. Statistics
Challenge 1: Probabilities and DistributionsChallenge 2: Bayes' TheoremChallenge 3: Hypothesis TestingChallenge 4: Confidence IntervalsChallenge 5: CorrelationTheoretical Questions
7. Scikit-learn
Challenge 1: Data ScalingChallenge 2: Basic Model CreationChallenge 3: PipelinesChallenge 4: Cross-validationChallenge 5: Hyperparameter TuningTheoretical Questions

book
Challenge 5: Classes

Classes

Classes form the backbone of Object-Oriented Programming (OOP) in Python. Their integral role is evident in:

  • Encapsulation: Classes allow bundling of data and methods that operate on that data within a single unit, ensuring cohesion and modularity.
  • Inheritance: It allows creation of a new class that is based on an existing class, promoting code reusability and establishing a relationship between the parent and child class.
  • Polymorphism: With classes, one interface can be used for a general class of actions, allowing different classes to be treated as instances of the same class through method overriding.

In summary, classes provide a blueprint for creating objects and a foundation for OOP, facilitating structured and scalable code design.

Opgave

Swipe to start coding

You have a base class Shape with a method area. Derive two subclasses Rectangle and Circle from it, which will calculate areas for their respective shapes.

List Comprehention
  1. Inherit class Rectangle from class Shape.
  2. Define area method for Rectangle class.
  3. Inherit class Circle from class Shape.
  4. Define area method for Rectangle class.

Løsning

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Sektion 1. Kapitel 6
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book
Challenge 5: Classes

Classes

Classes form the backbone of Object-Oriented Programming (OOP) in Python. Their integral role is evident in:

  • Encapsulation: Classes allow bundling of data and methods that operate on that data within a single unit, ensuring cohesion and modularity.
  • Inheritance: It allows creation of a new class that is based on an existing class, promoting code reusability and establishing a relationship between the parent and child class.
  • Polymorphism: With classes, one interface can be used for a general class of actions, allowing different classes to be treated as instances of the same class through method overriding.

In summary, classes provide a blueprint for creating objects and a foundation for OOP, facilitating structured and scalable code design.

Opgave

Swipe to start coding

You have a base class Shape with a method area. Derive two subclasses Rectangle and Circle from it, which will calculate areas for their respective shapes.

List Comprehention
  1. Inherit class Rectangle from class Shape.
  2. Define area method for Rectangle class.
  3. Inherit class Circle from class Shape.
  4. Define area method for Rectangle class.

Løsning

Switch to desktopSkift til skrivebord for at øve i den virkelige verdenFortsæt der, hvor du er, med en af nedenstående muligheder
Var alt klart?

Hvordan kan vi forbedre det?

Tak for dine kommentarer!

Sektion 1. Kapitel 6
Switch to desktopSkift til skrivebord for at øve i den virkelige verdenFortsæt der, hvor du er, med en af nedenstående muligheder
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