Documentation
Measures
Add, correct, browse, and delete dated values in a series.
Updated on June 13, 2026
Measures are the values you add to a series. Without measures, a series exists, but it has no history to display.
Add a measure
From a series chart detail screen, the add action opens the measure form.
Enter a value, then choose the date and time. By default, DataJot uses the current date. This is convenient for immediate entry, such as logging a coffee or recording a temperature when you read it.
If you add an older value, check the date before saving. A measure saved on the wrong day can change the chart and statistics in surprising ways.
Simple examples
In a “Coffee” series, you can add 1 every time you drink a coffee. With sum aggregation, the chart can then show the total per day.
In a “Weight” series, you usually add the measured value on a specific date. Average or last value can then tell a different story depending on the selected period.
Correct a measure
The measure list lets you find a value that was already saved. You can edit its value or date.
Editing updates the existing measure. It does not create a second one. This is useful if you entered 24 instead of 21.4, or if the measure was added at the wrong time.
Delete a measure
Deleting a measure removes that value from the series history.
This can change the chart, statistics, and displayed thresholds. If one value seems to distort an average or sum, check the measure list before deleting the whole series.
Browse the measure list
The list shows raw measures, meaning the values that were actually added.
It can be sorted by date in either direction. On Mac and large layouts, it can appear as a table. On compact screens, it is adapted as a list.
The list loads progressively in batches of 150 measures. If a series has a long history, scroll down to load more.
Raw measures and displayed values
A raw measure is a value you entered. A value displayed in a chart can be aggregated.
For example, if you add several coffees on the same day, the daily chart can display their sum. CSV export, however, exports raw measures, not the aggregated chart values.