BW #57: International arms trade (solution)
Get better at: CSV files, grouping, stack and unstack, window functions, and plotting
Reading from and writing to CSV files with Pandas, including options for delimiters, encoding, headers, and handling large files.
Get better at: CSV files, grouping, stack and unstack, window functions, and plotting
Get better at: CSV files, grouping, stack and unstack, window functions, and plotting
Get better at: CSV, PyArrow, regular expressions, filtering, plotting, window functions, cutting, and pivot tables
Get better at: CSV, PyArrow, regular expressions, filtering, plotting, window functions, cutting, and pivot tables
Get better at: CSV, PyArrow, grouping, stack-unstack, and pivot tables.
Get better at: CSV, PyArrow, grouping, stack-unstack, and pivot tables.
Get better at: CSV, dates and times, plotting, grouping, multi-indexes, and stack-unstack.
Get better at: CSV, dates and times, plotting, grouping, multi-indexes, and stack-unstack.
Get better at: CSV, PyArrow, missing values, cleaning, grouping, memory optimization, and plotting
Get better at: CSV, PyArrow, missing values, cleaning, grouping, memory optimization, and plotting
Get better at: CSV, multiple files, filtering, regular expressions, dates and times, window functions
Get better at: CSV, multiple files, filtering, regular expressions, dates and times, window functions