Composite Chart - Custral Docs

A composite chart combining bars and a line in one plot.

When to use

Composite charts overlay multiple series of different chart types on a shared x axis. Use them when you want to show a primary metric (typically as a bar) and a secondary related metric (typically as a line), for example, deal count and conversion rate over time.

Required data shape

X axis: shared by all series.
Series: one or more series, each with its own type (bar, line, area) and y property.

Configuration

Setting	What it does
X-axis	The property shared by every series along the horizontal axis.
Series	One or more value series to plot, each with its own type (bar, line, or area), label, and color.

Limitations

Two series is the sweet spot; three is the upper limit for legibility.
Pick differing scales carefully. If the secondary metric is much smaller than the primary, use a dual-axis view.