CPointExtractionScipyFindPeaks

class pepbench.algorithms.icg.CPointExtractionScipyFindPeaks(window_c_correction: int = 3, handle_missing_events: Literal['raise', 'warn', 'ignore'] = 'warn')

C-point extraction algorithm using find_peaks.

This algorithm extracts C-points based on the maximum of the most prominent peak in the ICG derivative signal using the find_peaks function.

Methods

clone()	Create a new instance of the class with all parameters copied over.
extract(*, icg, heartbeats, sampling_rate_hz)	Extract C-points from given cleaned ICG derivative signal using find_peaks.
get_params([deep])	Get parameters for this algorithm.
set_params(**params)	Set the parameters of this Algorithm.

__init__(window_c_correction: int = 3, handle_missing_events: Literal['raise', 'warn', 'ignore'] = 'warn')

Initialize new CPointExtractionScipyFindPeaks instance.

Parameters:

window_c_correctionint, optional

Number of preceding heartbeats taken into account for C-point correction (using mean R-C-distance). Default: 3

handle_missing_eventsone of {“warn”, “raise”, “ignore”}, optional

How to handle failing event extraction. Can be one of:

• “warn”: issue a warning and set the event to NaN

• “raise”: raise an EventExtractionError

• “ignore”: ignore the error and continue with the next event

Default: “warn”

clone() → Self

Create a new instance of the class with all parameters copied over.

This will create a new instance of the class itself and all nested objects

extract(*, icg: _IcgRawDataFrame | DataFrame, heartbeats: _HeartbeatSegmentationDataFrame | DataFrame, sampling_rate_hz: float | None)

Extract C-points from given cleaned ICG derivative signal using find_peaks.

The C-point is detected as the maximum of the most prominent peak in the ICG derivative signal within each segmented heartbeat.

The resulting C-points are saved in the ‘points_’ attribute of the class instance.

Parameters:

icgDataFrame

cleaned ICG derivative signal

heartbeatsDataFrame

Dataframe containing one row per segmented heartbeat, each row contains start, end, and R-peak. Result from HeartbeatSegmentation.

sampling_rate_hzint

Sampling rate of ICG derivative signal in Hz. Not used in this function.

Returns:

self

get_params(deep: bool = True) → dict[str, Any]

Get parameters for this algorithm.

Parameters:

deep

Only relevant if object contains nested algorithm objects. If this is the case and deep is True, the params of these nested objects are included in the output using a prefix like nested_object_name__ (Note the two “_” at the end)

Returns:

params

Parameter names mapped to their values.

set_params(**params: Any) → Self

Set the parameters of this Algorithm.

To set parameters of nested objects use nested_object_name__para_name=.