Using Pandas groupby to split data into groups, apply aggregate functions, and combine results for powerful data summarization.
Get better at: Excel files, plotting with Plotly, Marimo widgets, window functions, and sorting.
Get better at: Using Polars, working with APIs, handling JSON, cleaning, grouping, and plotting with Plotly.
Get better at: Using Polars, working with APIs, handling JSON, cleaning, grouping, and plotting with Plotly.
Get better at: Agentic coding and plotting with plotly
Get better at: Agentic coding and plotting with plotly
Get better at: Working with BSON files, JSON, grouping, plotting, joins, dates and times
Get better at: Working with BSON files, JSON, grouping, plotting, joins, dates and times
Get better at: Working with CSV files, cleaning data, plotting with Plotly, grouping, and dates and times.
Get better at: Working with CSV files, cleaning data, plotting with Plotly, grouping, and dates and times.
Get better at: Working with multiple CSV files, dates and times, joins, grouping, and plotting.
Get better at: Working with multiple CSV files, dates and times, joins, grouping, and plotting.
Get better at: Working with CSV files, dates and times, grouping, and cleaning.
