hilow {RSEIS} | R Documentation |
Search for Extrema along time series
hilow(y)
y |
time series |
LIST:
hi |
indexes to peaks |
lo |
indexes to valleys |
Jonathan M. Lees<jonathan.lees.edu>
peaks
ex = seq(from=0, to=4*pi, length = 200) y = sin(ex) plot(ex, y, type='l') peakval = hilow(y) abline(v=ex[peakval$hi], col='green') abline(v=ex[peakval$lo], col='red')