Documentation
Concepts and vocabulary
Understand series, measures, categories, units, visualization configurations, and thresholds in DataJot.
Updated on September 6, 2026
Series
A series is the data tracked over time, such as weight or temperature. It contains measures and defines their aggregation and display. See the Series guide to create or configure one.
Measure
A measure is a numeric value associated with a date and a series. Its date determines its position in the chart and whether it is included in statistics. Measures can be added in the app, from a widget, with Shortcuts, or on Mac through the local HTTP server.
Category
A category organizes several series on the dashboard. Deleting it does not delete its series; they simply become uncategorized.
Unit and sub-unit
A unit groups several ways to express the same measurement. For example, a mass unit can contain the sub-units g, kg, and t. The base sub-unit is the reference for conversions.
Visualization configuration
A visualization configuration groups the statistics, thresholds, colors, and axis bounds used to read a series. The same configuration can be associated with several series.
Threshold
A threshold associates a condition with a value, color, and optional label. When several thresholds match, DataJot uses the first one in the configured order.
Y-axis bound
Y-axis bounds set the vertical scale of a chart. They can keep the scale stable when comparing several periods.