* keep track of the derivative for unit_time
In this way, you will get a better estimate of the derivate during
the timescale that is relavant to the sensor.
This solved a problem where sensors have a low output resolution.
For example a temperature sensor that can only be integer numbers.
It might report many values that are the same and then suddenly go up one value.
Only in that moment (with the current implementation) the derivative will be finite.
With my proposed implementation, this problem will not occur, because it takes the average
derivative of the last `unit_time`.
* only loop as much as needed
* treat the special case of 1 entry
* add option time_window
* use cv.time_period
* fix comment
* set time_window=0 by default
* rephrase comment
* use timedelta for time_window
* fix the "G" unit_prefix and add more prefixes
https://en.wikipedia.org/wiki/Unit_prefix
* add debugging lines
* simplify logic
* fix bug where the there was a division of unit_time instead of multiplication
* simplify tests
* add test_data_moving_average_for_discrete_sensor
* fix test_dataSet6
* improve readability of the tests
* better explain the test
* remove debugging log lines
* create derivation component
based on integration component
remove left and right
* Update test
(was'n saved)
* add some functionnal point test
* Change derivation to derivative
* Continue migration from derivation to derivative
* Add codeowners info
* fix tests typo and values
* Improve code from reviewer
add test case
fix test values
still a prefix issue that should not
* create derivation component
based on integration component
remove left and right
* Update test
(was'n saved)
* add some functionnal point test
* Change derivation to derivative
* Continue migration from derivation to derivative
* Add codeowners info
* fix tests typo and values
* Improve code from reviewer
add test case
fix test values
still a prefix issue that should not
* Update homeassistant/components/derivative/sensor.py
Fix test issue with unit of measurement
Co-Authored-By: Santobert <tobhaase@gmail.com>
* Fix review
Move ValueError to SyntaxError
* precise state test
* un comment original tests and remove error tests
* Fix isort issue
* Fix review
- update doc link
- migrate to general const import
* Rollback import conf_unit, just defined localy
Co-authored-by: Santobert <tobhaase@gmail.com>
Bas Nijholt
Faucogney Anthony