multi-index
BW #103: CDC data (solution)
Get better at: Multi-indexes, working with dates and times, pivot tables, plotting, and window functions
multi-index
BW #103: CDC data
Get better at: Multi-indexes, working with dates and times, pivot tables, plotting, and window functions
cleaning
BW #98: Retail sales (solution)
Get better at: Cleaning data, plotting, dates and times, and window functions
cleaning
BW #98: Retail sales
Get better at: Cleaning data, plotting, dates and times, and window functions
excel
BW #82: Broadband (solution)
Get better at: Working with Excel files, dates and times, grouping, and window functions
excel
BW #82: Broadband
Get better at: Working with Excel files, dates and times, grouping, and window functions