grouping

BW #123: Missiles (solution)

Get better at: Web scraping, pivot tables, grouping, cleaning data, and using regular expressions

Jun 20, 2025 13 min read paid Featured

BW #123: Missiles

Get better at: Web scraping, pivot tables, grouping, cleaning data, and using regular expressions

Jun 19, 2025 3 min read paid Featured

BW #121: Research funding (solution)

Get better at: CSV files, grouping, strings, formatting, dates and times, and plotting

Jun 6, 2025 10 min read paid Featured

BW #121: Research funding

Get better at: CSV files, grouping, strings, formatting, dates and times, and plotting

Jun 4, 2025 4 min read paid Featured

BW #120: Pennies (solution)

Get better at: API usage, JSON manipulation, strings, regular expressions, and grouping

May 29, 2025 13 min read paid Featured

BW #120: Pennies

Get better at: API usage, JSON manipulation, strings, regular expressions, and grouping

May 28, 2025 5 min read paid Featured

BW #119: Python conferences (solutions)

Get better at: CSV files, working with dates and times, grouping, plotting, and handling multiple files.

May 23, 2025 12 min read paid Featured

BW #119: Python conferences

Get better at: CSV files, working with dates and times, grouping, plotting, and handling multiple files.

May 22, 2025 2 min read paid Featured

BW #118: Flight delays (solution)

Get better at: CSV files, working with dates and times, pivot tables, and plotting

May 16, 2025 11 min read paid Featured

BW #118: Flight delays

Get better at: CSV files, working with dates and times, pivot tables, and plotting

May 14, 2025 3 min read paid Featured

BW #117: Electricity (solution)

Get better at: CSV files, working with dates and times, pivot tables, grouping, and plotting

May 8, 2025 14 min read paid Featured

BW #113: US airport traffic (solution)

Get better at: Excel files, multiple files, pivot tables, grouping, dates and times, and plotting

Apr 10, 2025 15 min read paid Featured

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