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MRMCD2024 No More Loopy Code: Data Science Goes Functional
Learn how functional programming concepts like pure functions, immutable state, and declarative patterns can make your data science code more robust, testable and maintainable.
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Functions in functional programming should be small, pure and declarative - making them easier to verify, test and debug
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Data science workflows commonly involve chaining transformations like filtering, mapping and aggregating data - functional programming provides clean patterns for these operations
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Using immutable state and avoiding global variables makes code more maintainable and less prone to errors
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Map and filter are core functional programming concepts that allow operating on collections of data in a declarative way
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Functions can be composed together into pipelines, making complex data transformations more readable and maintainable
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Functional code is often easier to parallelize since pure functions can run independently without side effects
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There’s no need to go “100% functional” - start by gradually introducing functional concepts that provide value
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Strong type systems in functional programming help catch errors early in data transformations
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Small, pure functions are easier to reason about in isolation compared to large imperative functions with side effects
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While functional programming has a learning curve, it can make data science code more robust and maintainable in the long run