
# BW #111: State taxes (solution)
Get better at: Excel files, cleaning data, regular expressions, multi-indexes, and plotting
Get better at: Excel files, cleaning data, regular expressions, multi-indexes, and plotting
Get better at: Excel files, cleaning data, regular expressions, multi-indexes, and plotting
Get better at: CSV files, dates and times, filtering, regular expressions, correlations, and plotting
Get better at: CSV files, dates and times, filtering, regular expressions, correlations, and plotting
Get better at: CSV, filtering, regular expressions, multiple files, index operations, window functions, stack and unstack, multi-indexes, and plotting
Get better at: CSV, filtering, regular expressions, multiple files, index operations, window functions, stack and unstack, multi-indexes, and plotting
Get better at: Web scraping, string operations, dates and times, regular expressions, filtering, grouping, and plotting.
Get better at: Web scraping, string operations, dates and times, regular expressions, filtering, grouping, and plotting.
Get better with: Extracting from PDF files, multi-indexes, comprehensions, cleaning data, regular expressions, using "apply", plotting, and finding correlations.
Get better with: Extracting from PDF files, multi-indexes, comprehensions, cleaning data, regular expressions, using "apply", plotting, and finding correlations.
Get better at: Excel, memory optimization, PyArrow, grouping, regular expressions, strings, plotting, and pivot tables
Get better at: Excel, cleaning, string manipulation, grouping, regular expressions, pivot tables, dates and times, plotting, and window functions.