morlet {dplR}  R Documentation 
This function performs a continuous wavelet transform on a time series.
morlet(y1, x1 = seq_along(y1), p2 = NULL, dj = 0.25, siglvl = 0.95)
y1 

x1 

p2 

dj 

siglvl 

This performs a continuous wavelet transform of a time series. This
function is typically invoked with wavelet.plot
.
A list
containing:
y 

x 

wave 

coi 

period 

Scale 

Signif 

Power 

This is a port of Torrence’s IDL code, which can be accessed through the Internet Archive Wayback Machine.
Andy Bunn. Patched and improved by Mikko Korpela.
Torrence, C. and Compo, G. P. (1998) A practical guide to wavelet analysis. Bulletin of the American Meteorological Society, 79(1), 61–78.
library(utils)
data(ca533)
ca533.rwi < detrend(rwl = ca533, method = "ModNegExp")
ca533.crn < chron(ca533.rwi, prewhiten = FALSE)
Years < time(ca533.crn)
CAMstd < ca533.crn[, 1]
out.wave < morlet(y1 = CAMstd, x1 = Years, dj = 0.1, siglvl = 0.99)