EDA Date Order Cleanup - Time Series Mechanics

Read the Order

Start with three rows whose date text is out of order and not written the same way. Standardize each date to YYYY-MM-DD. Then sort chronologically: 2024-01-01, 2024-01-02, 2024-01-03. The final plot uses the sorted dates, not the original row order.

A tiny date-order cleanup: parse mixed date-like strings into sortable YYYY-MM-DD dates, sort chronologically, and draw the ordered values.

highlighted = computed this step

Load out-of-order dates

Start with 3 pinned rows whose date-like strings are not in chronological order.

\text{raw date strings}

Standardize date strings

Parse the date-like strings into sortable YYYY-MM-DD strings.

\text{standard dates}

Sort chronologically

Sort by the standard date from earliest to latest.

\text{chronological sort}

Draw the ordered visual

The ordered visual uses the sorted dates with values 5, 6, and 7.

\text{ordered visual}