See command line for batch option (output below).

To add a peak: right-click on the blue line in the top graph.

To delete a peak: right-click a peak (the following trough will be removed too).

Running from Matlab:

load D:\Working\WHH\all3101

% run_pd
x = D.recording{1}.ts.pleth.Time * 60;
y = squeeze( D.recording{1}.ts.pleth.Data );

O = peakdetect_gui( y, x );

Parameters

In the GUI, set these then "Run" to re-calculate peaks. This will overwrite any manual peak editing you did.

GUI Parameter	Command Line Parameter	Meaning	Change
Moving avg. window (secs.)	mawindow	window length for moving average	reduce to allow for faster baseline trend changes
Threshold decay time constant Pk	decaytimeconstpk	decay time constant for peaks	reduce to detect more peaks; this determines how fast the peak threshold decays down from the previous peak towards.
Threshold decay time constant Tr	decaytimeconsttr	decay time constant for troughs	reduce to detect more troughs; this determines how fast the peak threshold decays up from the previous trough.
Threshold limit (%last peaks/troughs) Pk	threshlimpk	percent of peak height above moving average mean (sets lower bound for peak decay)	decrease to detect more peaks (can be negative)
Threshold limit (%last peaks/troughs) Tr	threshlimtr	percent of trough depth below moving average mean (sets upper bound for trough decay)	decrease to detect more peaks (can be negative)
Min. interval (checkbox)	flagmininterval	flag for using/not using mininternval	set to 0 for not using (useful if you want to have a flags structure to test, but don't want to constantly change or remove "mininterval")
Min. interval (text box)	mininterval	minimum interval allowed between peaks (or troughts)	set so that no non-physiologic values are found (e.g. in seconds, 0.25 ~ 4 Hz ~ 240 bpm)

Outputs

	Field	Meaning
Core output
	px	peak timepoint
	py	peak height
	tx	trough timepoint
	ty	trough height
New channels
	ratex	rate timepoint	timepoints at which we have a rate caluclation
	ratey	rate value	bpm (beats/breaths per minute)
	intervalx	interval timepoint	timepoints at which we have an interval calculation (inverse of rate)
	intervaly	time from previous peak
	heightx	height timepoint
	heighty	peak-to-trough amplitude	au (arbitrary units)
	ratex_seconds	rate timepoint in seconds	(batch only)
	ratey_Hz	rate in Hertz	(batch only)
	ratey_bpm	rate in cycles/minute	(batch only)
peak_num		total number of peaks + troughts
Other fields: parameters for automatic peak detection

O =

peak_num: 2619
px: [1x1310 double]
py: [1x1310 double]
tx: [1x1309 double]
ty: [1x1309 double]
meany: [1x81200 double]
limit_pk: [1x81200 double]
threshold_pk: [1x81200 double]
limit_tr: [1x81200 double]
threshold_tr: [1x81200 double]
all_valpx: [1x1310 double]
all_valpy: [1x1310 double]
all_valtx: [1x1310 double]
all_valty: [1x1310 double]
all_px: [1x2102 double]
all_py: [1x2102 double]
all_tx: [1x2101 double]
all_ty: [1x2101 double]
px_auto: [1x1310 double]
py_auto: [1x1310 double]
tx_auto: [1x1309 double]
ty_auto: [1x1309 double]
ratex: [1x1309 double]
ratey: [1x1309 double]
intervalx: [1x1309 double]
intervaly: [1x1309 double]
heightx: [1x1309 double]
heighty: [1x1309 double]

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