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Bar and line combo charts in Tractorscope

Bar and line combo charts combine bar series and line series in one chart. This is useful when related metrics have different meanings or scales.

Common examples

  • Revenue as bars and conversion rate as a line
  • Signups as bars and activation rate as a line
  • Tickets as bars and average response time as a line
  • Sales as bars and target as a line

How it works

Start with a bar chart, then set one or more chart series to render as lines. Line style settings become available when the chart contains line series.

SQL shape

Return one category column and one or more numeric columns:
select
  date(created_at) as day,
  count(*) as orders,
  avg(conversion_rate) as conversion_rate
from daily_metrics
group by 1
order by 1
select
  date(created_at) as day,
  count(*) as orders,
  avg(conversion_rate) as conversion_rate
from daily_metrics
group by 1
order by 1

Tips

  • Use bars for counts, totals, or volume.
  • Use lines for rates, averages, goals, or trends.
  • Label axes clearly when metrics use different units.

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