Liam Foley questions

Liam Foley answers

• Building a new column in a pandas dataframe by matching string values in a list
• Pandas: DataFrame too long after merge
• Aggregating two Pandas series by summing [duplicate]
• Object pandas has no attribute name Series
• How to get Pandas column multiindex names as a list
• Create a day-of-week column in a Pandas dataframe using Python
• Filtering Pandas Dataframe using OR statement