HappyPy questions

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• replace masked with nan in numpy masked_array
• get unique combination values of a correlation matrix - pandas
• how to update existing data frame in pandas?
• creating Matlab cell arrays in python
• drop multiindex level but keep names of columns - pandas
• how to convert column names into column values in pandas - python
• how to compute a new column based on the values of other columns in pandas - python
• how to use pd.cut() across columns of a data frame?
• boot() equivalent in python?

HappyPy answers