A field<vec> that contains the wavelet coefficients for each decomposition level
Arguments
x
A vector with dimensions N x 1.
nlevels
A integer indicating the \(J\) levels of decomposition.
filter
A string indicating the filter name
Author
James Balamuta, Justin Lee and Stephane Guerrier
Details
Performs a level \(J\) decomposition of the time series using the pyramid algorithm.
The default \(J\) is determined by \(floor\left(log_2 \left(length\left(x\right)\right)\right)\)