Data Cleaning Skill

Overview

Master data cleaning and preprocessing techniques essential for reliable analytics.

Error Type	Cause	Recovery
Memory error	Dataset too large	Use chunking or sampling
Type conversion failed	Invalid data format	Apply preprocessing first
Encoding issues	Wrong character encoding	Detect and specify encoding
Validation failure	Data doesn't meet schema	Review and adjust validation rules

Master data cleaning and preprocessing techniques essential for reliable analytics.

Error Type	Cause	Recovery
Memory error	Dataset too large	Use chunking or sampling
Type conversion failed	Invalid data format	Apply preprocessing first
Encoding issues	Wrong character encoding	Detect and specify encoding
Validation failure	Data doesn't meet schema	Review and adjust validation rules