RSEIS (version 4.2-4)

STLTcurve: Short-term/Long-term Average curve

Description

Get short-term average long-term verage ratio curve for picking

Usage

STLTcurve(y, dt = 0.008, fwlen = 125, bwlen = 125,
stretch = 1000, MED = 255, PLOT = FALSE)

Value

sample to significant change in ratio curve

Arguments

y

signal

dt

sample rate

fwlen

forward window, number of samples

bwlen

back window length, number of samples

stretch

stretch multiplier

MED

median smoother

PLOT

logical, TRUE=plot diagnostics

Author

Jonathan M. Lees<jonathan.lees.edu>

Details

Uses C-code and fast tanking algorithm written at UW

See Also

PSTLTcurve

Examples

data(CE1)

y  = CE1$y

DT = CE1$dt



sy = STLTcurve(y, dt=DT, fwlen =  25,  bwlen  = 25,
stretch=1000, MED=255, PLOT=FALSE)

par(mfrow=c(2,1))

plot(CE1$x, CE1$y, type='l')
plot(CE1$x,sy$rat, type='l')