Pivot and Melt in Python
From the Pandas cheat sheet · Reshape Data · verified Aug 2026
Pivot and Melt
Reshape long data to wide form and back.
python
wide = df.pivot(index="date", columns="metric", values="value")📌 pivot requires unique index-column pairs
💡 pivot_table aggregates duplicate pairs
🔍 melt converts wide columns into row values
🎯 Use long form for most grouped analysis
pivotmeltreshape
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