grouping

BW #45: Netflix

Get better at: Excel, dates and times, missing data, grouping, formatting, using "apply", plotting, and regular expressions

Dec 20, 2023 3 min read paid

BW #44: Global economics

Get better at: APIs, grouping, multiple files, stack and unstack, window functions, plotting, and regular expressions.

Dec 13, 2023 3 min read paid

BW #41: Wine production (solution)

Get better at: Excel files, regular expressions, filtering, grouping, plotting, pivot tables, cleaning

Nov 23, 2023 15 min read paid

BW #41: Wine production

Get better at: Excel files, regular expressions, filtering, grouping, plotting, pivot tables, and cleaning

Nov 22, 2023 3 min read paid

BW #40: Sovereign Bonds (solution)

Get better at: APIs, scraping, regular expressions, cleaning, outliers, and grouping.

Nov 16, 2023 15 min read paid

BW #40: Sovereign Bonds

Get better at: APIs, scraping, regular expressions, cleaning, outliers, and grouping.

Nov 15, 2023 4 min read paid

BW #35: Terrorism (solution)

Get better at: Excel files, filtering, window functions, joins, grouping, and plotting.

Oct 12, 2023 16 min read paid

BW #35: Terrorism

Get better at: Excel files, filtering, window functions, joins, grouping, and plotting.

Oct 11, 2023 3 min read paid

BW #34: House of Representatives (solution)

Get better at: CSV files, memory optimization, grouping, stack/unstack, window functions, and sorting.

Oct 5, 2023 16 min read paid

BW #34: House of Representatives

Get better at: CSV files, memory optimization, grouping, stack/unstack, window functions, and sorting.

Oct 4, 2023 3 min read paid

BW #33: Fracking (solution)

Get practice with CSV files, multiple files, comprehensions, dates and times, formatting, missing data, plotting, and grouping.

Sep 28, 2023 19 min read paid

BW #33: Fracking