historyMin

The lowest logged value of a tag over a time range.

Read scripts only. Part of the virtual tag expression reference.

Returns the lowest value a tag was logged at over a time range, from its history.

historyMin(tag: string, fromTime: number, toTime?: number): number | null;

Parameters

• tag — the path to the tag.
• fromTime — the start of the range, as a Unix timestamp in seconds.
• toTime — the end of the range, as a Unix timestamp in seconds. Defaults to now.

Return value

The minimum value in the range, or null if the range has no logged data.

Example

// Lowest outdoor temperature over the last 24 hours
historyMin("Outdoor/Temperature", getTimeBefore("1d", getCurrentTime()));