[Ea,Ed] = wenergy(c,l)
returns, for a 1-D wavelet decomposition, Ea, the percentage of
energy corresponding to the approximation, and Ed, the
percentages of energies corresponding to the details. c and
l are outputs of wavedec.
E = wenergy(wpt)
returns the percentages of energy corresponding to the terminal nodes of the wavelet
packet tree wpt (see wptree, wpdec, and wpdec2). In this case,
wenergy is a method of the wptree object
wpt, which overloads the previous
wenergy function.
Wavelet decomposition, specified as a vector. The vector contains the
wavelet coefficients. The bookkeeping vector l contains
the number of coefficients by level. See wavedec.
Data Types: single | double Complex Number Support: Yes
Bookkeeping vector, specified as a vector of positive integers. The
bookkeeping vector is used to parse the coefficients in the wavelet
decomposition c by level. See wavedec.
Data Types: single | double
Wavelet packet tree, specified as a wptree object. See
wptree, wpdec, and wpdec2.
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