Base class for filters that need a sorted window (Median, Quantile). More...

#include <filter.h>

Inheritance diagram for esphome::sensor::SortedWindowFilter:

Public Member Functions
	SlidingWindowFilter (size_t window_size, size_t send_every, size_t send_first_at)

Public Member Functions inherited from esphome::sensor::SlidingWindowFilter
	SlidingWindowFilter (size_t window_size, size_t send_every, size_t send_first_at)

optional< float >	new_value (float value) final

Public Member Functions inherited from esphome::sensor::Filter
virtual void	initialize (Sensor parent, Filter next)
	Initialize this filter, please note this can be called more than once.

void	input (float value)

void	output (float value)

Protected Member Functions
FixedVector< float >	get_window_values_ ()
	Helper to get non-NaN values from the window (not sorted - caller will use nth_element) Returns empty FixedVector if all values are NaN.

Protected Member Functions inherited from esphome::sensor::SlidingWindowFilter
virtual float	compute_result ()=0
	Called by new_value() to compute the filtered result from the current window.

Additional Inherited Members
Protected Attributes inherited from esphome::sensor::SlidingWindowFilter
FixedVector< float >	window_
	Access the sliding window values (ring buffer implementation) Use: for (size_t i = 0; i < window_count_; i++) { float val = window_[i]; }.

size_t	window_head_ {0}
	Index where next value will be written.

size_t	window_count_ {0}
	Number of valid values in window (0 to window_size_)

size_t	window_size_
	Maximum window size.

size_t	send_every_
	Send result every N values.

size_t	send_at_
	Counter for send_every.

Protected Attributes inherited from esphome::sensor::Filter
friend	Sensor

Filter *	next_ {nullptr}

Sensor *	parent_ {nullptr}

Detailed Description

Base class for filters that need a sorted window (Median, Quantile).

Extends SlidingWindowFilter to provide a helper that filters out NaN values. Derived classes use std::nth_element for efficient partial sorting.

Definition at line 102 of file filter.h.

Member Function Documentation

FixedVector< float > esphome::sensor::SortedWindowFilter::get_window_values_ ( )

protected

Helper to get non-NaN values from the window (not sorted - caller will use nth_element) Returns empty FixedVector if all values are NaN.

Definition at line 76 of file filter.cpp.

esphome::sensor::SlidingWindowFilter::SlidingWindowFilter	(	size_t	window_size,
		size_t	send_every,
		size_t	send_first_at )

Definition at line 55 of file filter.cpp.

The documentation for this class was generated from the following files: