xcor2 {RSEIS} | R Documentation |
Cross correlation of two signals
xcor2(a1, a2, DT, PLOT = FALSE, LAG = 100)
a1 |
input signal 1 |
a2 |
input signal 1 |
DT |
deltaT in seconds |
PLOT |
logical TRUE=plot |
LAG |
time lag for correlation function |
Illustrates the cross correlation of two time series.
Return list from ccf, and position of maximum lag. Graphical Side effects.
Jonathan M. Lees<jonathan.lees.edu>
ccf
data(CE1) ts1 = CE1$y[CE1$x>5.443754 & CE1$x<5.615951] ts2 = CE1$y[CE1$x>5.760959] ts2 = ts2[1:length(ts1)] ts1 = ts1-mean(ts1) ts2 = ts2-mean(ts2) xc = xcor2(ts1, ts2, CE1$dt , PLOT = TRUE)