reference line
Fixed measurement guide
A reference line is a baseline or standard against which other things are measured or compared.
In drafting and technical drawing, reference lines establish fixed points for alignment.
In data visualization, a reference line marks a threshold or target value: The chart includes a reference line at the industry average.
The term extends to any conceptual baseline: His first novel became the reference line for everything he wrote afterward.
- baselineStandard for comparison
- axisRotation reference line
- benchmarkStandard for comparison
- guidelineRecommended standard for action
- datumSingle unit of information
zero point · starting point · horizon · true north · marker · alignment · straightedge · grid · ruler · calibration · zero · origin · plumb · level · level playing field · meridian · equator · crosshair
reference lineestimate
Informed guess at quantity
approximation · rough estimate · guess · ballpark figure · guesstimate
reference linemoving average
Smoothed price over time
trend line · raw data · empirical data · data point · deviation
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