Given a sequence of lag distances, this function returns the Morlet wavelet
Usage
Morlet(lag)
Arguments
lag
A sequence of lag distances, typically a matrix
Value
A set of Morlet filters, typically as a matrix
Details
This version of the Morlet is scaled so that the central frequency is
exactly 2Pi radians. This is the simple version of the Morlet, sometimes
referred to as a psuedo-wavelet as it it not precisely normalized, leading
to some leakage into the DC component. It is therefore unsuited to
reconstruction using the inverse transform.