Mixed Chart
A mixed chart draws bars and a line on the same chart. It is the right choice when you want to show two related but differently-scaled metrics together — for example a volume as bars and a rate or running value as a line.
When to use it
- A count (bars) alongside a percentage or average (line).
- An absolute total (bars) alongside a cumulative or trend value (line).
- Any time two series share an x-axis but look wrong on the same scale.
Building a mixed chart
Provide your labels in the first column, then the numeric series:
SELECT
month AS "Month",
SUM(revenue) AS "Revenue",
AVG(margin_pct) AS "Avg margin %"
FROM monthly
GROUP BY month
ORDER BY month;
Choose Mixed as the chart type. Revenue is shown as bars and
Avg margin % as a line over the top, so the large total and the small
percentage stay readable side by side.
Tips
- Keep the bigger-magnitude series as the bars and the smaller/rate series as the line.
- Order the labels with
ORDER BYso the line reads correctly. - Don't overload it — one bar series and one line series is the clearest combo.