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Data python recommended

Pandas Patterns

Pandas patterns covering vectorization, method chaining, memory optimization, chunked processing, categorical dtypes, and performance best practices.

Difficulty
intermediate
Read time
1 min read
Version
v1.0.0
Confidence
established
Last updated

Quick Reference

Pandas: Vectorize operations (avoid loops and apply). Method chaining for readability. Use .loc/.iloc not chained indexing. Categorical dtype for low-cardinality strings. Downcast numerics (int64 to int32). Chunked read_csv for large files. Filter early in pipelines. query() for readable conditions. to_parquet for efficient storage.

Use When

  • Python data analysis
  • DataFrame operations
  • Data cleaning/transformation
  • CSV/Excel processing

Skip When

  • Real-time streaming data
  • Distributed computing (use Spark)
  • GPU processing (use cuDF)

Pandas Patterns

Pandas patterns covering vectorization, method chaining, memory optimization, chunked processing, categorical dtypes, and performance best practices.

Tags

pandas python data performance vectorization

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