BW #78: Stock markets (solution)
Get better at: Multi-indexes, strings, and date/time values
13 min read
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multi-index
In Pandas, the rows and columns are labeled with an index. But each of them can have more than one dimension, known as a "multi-index."
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BW #78: Stock markets
Get better at: Multi-indexes, strings, and date/time values
3 min read
paid
BW #75: Refugees (solution)
Get better at: CSV, filtering, regular expressions, multiple files, index operations, window functions, stack and unstack, multi-indexes, and plotting
12 min read
paid
BW #75: Refugees
Get better at: CSV, filtering, regular expressions, multiple files, index operations, window functions, stack and unstack, multi-indexes, and plotting
2 min read
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BW #72: City travel (solution)
Get better at: CSV files, PyArrow, multi-indexes, index operations, plotting, grouping, sorting, correlations, and joins.
14 min read
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BW #71: Holidays
Get better at: CSV files, PyArrow, multi-indexes, index operations, plotting, grouping, sorting, correlations, and joins.
2 min read
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BW #68: Dangerously hot weather (solution)
Get better with: Extracting from PDF files, multi-indexes, comprehensions, cleaning data, regular expressions, using "apply", plotting, and finding correlations.
16 min read
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BW #68: Dangerously hot weather
Get better with: Extracting from PDF files, multi-indexes, comprehensions, cleaning data, regular expressions, using "apply", plotting, and finding correlations.
2 min read
paid
BW #62: Economic report card (solution)
Get better at: Excel, missing values, multi-index, regular expressions, web scraping, string operations, plotting, and grouping
16 min read
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BW #62: Economic report card
Get better at: Excel, missing values, multi-index, regular expressions, web scraping, string operations, plotting, and grouping
2 min read
paid
BW #59: Long covid (solution)
Get better at: CSV, dates and times, multi-indexes, plotting, filtering, and grouping
9 min read
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BW #59: Long covid
Get better at: CSV, dates and times, multi-indexes, plotting, filtering, and grouping
3 min read
paid