warray: Creates an array of wavelet transforms from input timeseries

In wsyn: Wavelet Approaches to Studies of Synchrony in Ecology and Other Fields

Description

Creates an array of wavelet transforms from input timeseries

Usage

warray(dat, times, scale.min = 2, scale.max.input = NULL, sigma = 1.05, f0 = 1)

Arguments

dat	A locations (rows) x time (columns) matrix
times	A vector of timestep values (e.g. years), spacing 1
scale.min	The smallest scale of fluctuation that will be examined. At least 2.
scale.max.input	The largest scale of fluctuation that will be examined. Note that if this is set too high relative to the length of the timeseries it will be truncated.
sigma	The ratio of each time scale examined relative to the next timescale. Greater than 1.
f0	The ratio of the period of fluctuation to the width of the envelope

Value

warray returns a list containing:

wavarray	locations x time x timescales array of wavelet transforms
times	the time steps specified (e.g., years)
timescales	the timescales (1/frequency) computed for the wavelet transforms

Note

Important for interpreting the phase: the phases grow through time, i.e., they turn anti-clockwise. This function is internal, no error checking.

Author(s)

Lauren Hallett, [e-mail]; Lawrence Sheppard, [e-mail]; Daniel Reuman, [e-mail]

wsyn documentation built on June 19, 2021, 1:07 a.m.