LabVIEW Advanced Signal Processing Toolkit API Reference

WA WP Read Entropy VI

  • Updated2023-02-21
  • 2 minute(s) read

WA WP Read Entropy VI

Owning Palette: Wavelet Packet VIs

Requires: Advanced Signal Processing Toolkit

Reads the entropy of the wavelet packet (WP) coefficients of a node that path specifies.

Example

WP session specifies a reference to an existing wavelet packet structure.
path specifies the path associated with a node of the wavelet packet tree. path is a combination of the characters 0 and 1, where 0 represents lowpass filtering, and 1 represents highpass filtering. For example, a value of 101 indicates that this VI passes the signal through a highpass filter, through a lowpass filter, and then through a highpass filter. path can be root, which represents the original signal without any filtering operation.
error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
WP session out returns a reference to an existing wavelet packet structure, which this VI can modify.
entropy returns the entropy of the wavelet packet coefficients at the node that path specifies.
error out contains error information. This output provides standard error out functionality.

Example

Refer to the Wavelet Packet - Read Entropy VI in the labview\examples\Wavelet Analysis\WAGettingStarted directory for an example of using the WA WP Read Entropy VI.

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