Function File: levels = statelevels (A) ¶

Function File: levels = statelevels (A, nbins) ¶

Function File: levels = statelevels (A, nbins, method) ¶

Function File: levels = statelevels (A, nbins, method, bounds) ¶

Function File: [levels, histograms] = statelevels (…) ¶

Function File: [levels, histograms, binlevels] = statelevels (…) ¶

Function File: statelevels (…) ¶

Estimate state-level for bilevel waveform A using histogram method

INPUTS:

A

Bylevel waveform

nbins

Number of histogram bins (100 default)

method

State-level estimation method ’mode’ (default) or ’mean’.

bounds

2 element vector for histogram lower and upper bounds. Values outside of this will be ignored.

OUTPUTS:

levels

Levels of high and low states

histograms

Histogram counts

binlevels

Histogram bincenters

If no outputs are provided, the signal and histogram will be plotted, and display the levels.

Demonstration 1

The following code

 # Generate test signal
 t = linspace(0,2*pi*10,100);
 X = square(t) + cos(t);
 # plot the waveform and provide the levels
 statelevels(X)

Produces the following output

ans =

  -1.9795   1.9800

and the following figure

Figure 1

Package: signal