simplex.Run2: simplex.Run2

In stw32/PulseWaveform: Extraction of Photoplethysmography Waveform Features and Decomposition Modeling of Pulse Waveforms

simplex.Run2

Description

Simplex.Run2 intiates the Nelder Mead downhill simplex routine to optimise model parameters and goodness of fit.

Usage

simplex.Run2(data = ppg,simplexParam = mat, f = model2.ChiSq3, optional=NULL, beat_vector = beat_vector, ms = simplex_iterations, renal_param = renal_param, dias_param = dias_param, sys_time = sys_time, w = w, run = NULL)

Arguments

data	ppg time series segment
simplexParam	the matrix outputted by make.matrix, representative of all model parameters in an inputted batch of beats
f	model2.ChiSq3 function
optional	currently redundant
beat_vector	an index of beats to be modeled and their x-coordinates to extract from the PPG time series
ms	number of simplex iterations to conduct
renal_param	the starting parameter for 1st reflectance peak timing (inputted to prevent drastic deviations from this value)
dias_param	the starting parameter for 2nd reflectance peak timing (inputted to prevent drastic deviations from this value)
sys_time	the starting parameter for systolic peak timing (inputted to prevent drastic deviations from this value)
w	the timing of the 1st derivative peaks on the ppg time series
run	indicates which iteration of the simplex routine is being run

Value

A matrix with equivalent structure to the one inputted, with optimised parameter values.

Examples

sim <- simplex.Run2(data = ppg, simplexParam = mat, f = model2.ChiSq3, optional=NULL,
                                  beat_vector = beat_vector, renal_param = renal_param,
                                  dias_param = dias_param, sys_time = sys_time, w = w, run = c("run", i))

stw32/PulseWaveform documentation built on Dec. 6, 2022, 2:50 a.m.