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Line and area charts in Tractorscope

Line and area charts show trends across ordered values, most often dates or times.

When to use line charts

Use line charts for:
  • Daily active users
  • Monthly recurring revenue
  • Conversion rates over time
  • Average response time
  • Cumulative totals

Area fill

Area fill emphasizes volume under a trend line. It is useful for totals, counts, and cumulative values.

Cumulative mode

Cumulative line charts show running totals. Use them for progress toward a goal, running revenue, or cumulative signups.

SQL shape

select
  date(created_at) as day,
  count(*) as signups
from users
group by 1
order by 1
select
  date(created_at) as day,
  count(*) as signups
from users
group by 1
order by 1

Tips

  • Always sort time-series queries by date.
  • Use area fill sparingly when multiple series overlap.
  • Use points when individual observations matter.
  • Use line charts instead of bars for dense time series.

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