hisMode – Project Haystack

def

hisMode

Indicates the way that history data is collected for a point.

meta

enum

sampled

Data is sampled on a regular interval. The timestamp indicates exactly when the sample was taken, and we assume linear interpolation between samples.

cov

Data is logged when it changes. The means the timestamp indicates exactly when it changed (inclusive) and it remains that value until the next sample's timestamp (exclusive).

consumption

Integral data is sampled on a regular interval and logged at the end of the interval. The timestamp indicates the end of the interval. Therefore, the raw data is logged as start exclusive, end inclusive. This is mode is typical for consumption meters.

supertypes

val

Data value type

    scalar

Scalar is an atomic value kind

        str

Unicode string of characters