Area Chart Maker

Area chart

An area chart shades the space between a line and its baseline. It emphasizes the magnitude of a changing quantity. A stacked area chart adds comparable components at each time point; its top boundary represents their total at that point, not a running total over time.

When it helps

Use an area chart for volume trends such as visits or output. Prefer a line chart when small changes matter more than magnitude or when several overlapping fills would hide one another.

What to check

1. Keep time ordered. Use consistent intervals or make gaps explicit.
2. Name the unit. Distinguish counts, rates, percentages, and monetary values.
3. Respect the baseline. A zero baseline usually gives filled areas an honest magnitude comparison.
4. Stack only additive series. Overlapping populations cannot be added without double counting.
5. Show missing data honestly. A missing month is not automatically a month with zero activity.

Build it with MyMap

MyMap turns supplied values and chart instructions into a visual you can revise by asking. The example compares monthly active users and new signups with overlapping fills; it is not a stacked total or evidence about your own traffic.