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python - Reshape wide to long in pandas - Stack Overflow
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Data science: Reshape Python pandas dataframe from wide to long with pd.melt
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R vs Python: Pivoting Data From Long to Wide Form.
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Long vs. Wide Data: What's the Difference? - Statology
Data science: Reshape Python pandas dataframe from long to wide with pivot_table
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Why and How to Reshape a Pandas Dataframe from Wide to Long | by My Data Talk | Towards Data Science
Data science: Reshape Python pandas dataframe from long to wide with pivot_table
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Yet Another Math Programming Consultant: Pivoting a table: GAMS, SQLite, R and Python
