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Paweł Rumian questions

• Pandas dataframe - find matching rows, based on IDs from two columns
• vim - navigate simultaneously through multiple files with timestamps
• pandas - add a column with value based on exisitng one (bins, qcut)
• Extract rows with highest and lowest values from a data frame
• pandas - pivot_table with non-numeric values? (DataError: No numeric types to aggregate)
• matplotlib - 3d surface from a rectangular array of heights

Paweł Rumian answers