mudhorn/prometheus
1
0
Fork 0
mirror of https://github.com/prometheus/prometheus.git synced 2024-12-25 21:54:10 -08:00
Code Issues Actions 3 Packages Projects Releases Wiki Activity

Merge pull request #10076 from mtfoley/docs-deriv

Browse source 
docs: update function docs on deriv
This commit is contained in:
Björn Rabenstein 2022-08-11 11:49:21 +02:00 committed by GitHub
parent d33ce990b9 b6630876d3
commit bcd548c88b
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 5 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
docs/querying/functions.md
View file

@ -136,6 +136,8 @@ delta(cpu_temp_celsius{host="zeus"}[2h])
`deriv(v range-vector)` calculates the per-second derivative of the time series in a range
vector `v`, using [simple linear regression](https://en.wikipedia.org/wiki/Simple_linear_regression).
The range vector must have at least two samples in order to perform the calculation. When `+Inf` or
`-Inf` are found in the range vector, the slope and offset value calculated will be `NaN`.
`deriv` should only be used with gauges.
@ -335,6 +337,9 @@ January etc.
`predict_linear(v range-vector, t scalar)` predicts the value of time series
`t` seconds from now, based on the range vector `v`, using [simple linear
regression](https://en.wikipedia.org/wiki/Simple_linear_regression).
The range vector must have at least two samples in order to perform the
calculation. When `+Inf` or `-Inf` are found in the range vector,
the slope and offset value calculated will be `NaN`.
`predict_linear` should only be used with gauges.