A pivot table redisplays information from a data frame in a new way: It uses the unique values from one column as its index, the unique values from a second column for its columns, and then applies an aggregation function to all of the values in each row-column intersection.
Get better at: CSV, multiple files, plotting with Seaborn, string operations, pivot tables, window functions, and joins.
Get better at: Excel files, regular expressions, filtering, grouping, plotting, pivot tables, cleaning
Get better at: Excel files, regular expressions, filtering, grouping, plotting, pivot tables, and cleaning
Get practice with CSV, dates and times, grouping, window functions, pivot tables, and plotting.
Get practice with CSV, dates and times, grouping, window functions, pivot tables, and plotting.
Get practice with CSV files, pivot tables, window functions, and plotting
Get practice with CSV files, pivot tables, window functions, and plotting
Get practice working with CSV files, plotting with Seaborn, sorting, multi-indexes, and pivot tables.
Get practice working with CSV files, plotting with Seaborn, sorting, multi-indexes, and pivot tables.
Get better with CSV, memory optimization, plotting, joins, dates and times, pivot tables, and sorting.
Get better with CSV, memory optimization, plotting, joins, dates and times, pivot tables, and sorting.
Get better at: Date and time data, CSV, plotting, pivot tables, joins, and correlations
