Interior wavelet coefficients are those not subject to circular filter
operations. This function calculates the maximum level for a wavelet transform
for which there exists at least one interior wavelet coefficient.
OPTIONAL ARGUMENTS:
n.taps
The length of the wavelet filter. Default: 8.
n.sample
The number of points in the original time series. Default: 1024.
transform
A chcarcter string denoting the transform type. Supported types are ``dwt",
``dwpt", ``modwt", and ``modwpt". Default: ``modwt".
VALUE:
result
An integer denoting the maximum decomposition level which contains at least one
interior wavelet coefficient.