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Splitting multicolumn table
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Transpose N rows with different columns into single column
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Combine column from multiple rows into single row
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How to merge columns in a table?
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Return multiple values in one column
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Combining values in one column (or part) when values in another column (or part) match
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pandas convert some columns into rows
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How to convert multiple duplicate columns as single row with appreciated values
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Reshape multiple value columns to wide format