fn_spectrogram

Contents

Syntax

[y freqs yticklog yticklabel] = fn_spectrogram(x,dt[,freqscaling][,freqs])
fn_spectrogram(['display',]y,dt|tt,freqs,yticklog,yticklabel[,freqscaling][,clip])

Description

This is a wrapper of Matlab Wavelet Toolbox 'cwtft' function to do
time-frequency analysis.
The second function form is a utility to display the result.

Input
- x       ND array - signals: first dimension is time, second dimension is
          repetition (spectrograms will be averaged along this dimension),
          additional dimensions correspond to different conditions and will
          not lead to averaging
          cell array can be used as well for different conditions having
          different numbers of repetitions each
- dt      scalar - time bin in second
- freqscaling     function with prototype @(f)fun(f), or a char, e.g.
          'f', or 'sqrt(f)' - indicates how to rescale the data
          frequency-by-frequency [default: no rescale]

Source

Thomas Deneux

Copyright 2015-2017

Published with MATLAB® R2015a