Pure Functions

In data science and artificial intelligence, pure functions are functions that always return the same output for a given input and do not have any side effects. This means that pure functions do not modify any external state or variables and do not rely on any external state or variables. Pure functions are deterministic and predictable, which makes them easier to test, debug, and reason about. They are also more parallelizable and cacheable, which can improve performance and scalability. Pure functions are a fundamental concept in functional programming, which is a programming paradigm that emphasizes the use of pure functions and immutable data structures. In data science and artificial intelligence, pure functions are often used for data preprocessing, feature engineering, and model evaluation, where the same input data and parameters should always produce the same output metrics and predictions.
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