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tfrview

Visualization of time-frequency representations.

Calling Sequence

tfrview(TFR,SIG,T,METHOD,PARAM)
tfrview(TFR,SIG,T,METHOD,PARAM,P1)
tfrview(TFR,SIG,T,METHOD,PARAM,P1,P2)
tfrview(TFR,SIG,T,METHOD,PARAM,P1,P2,P3)
tfrview(TFR,SIG,T,METHOD,PARAM,P1,P2,P3,P4)
tfrview(TFR,SIG,T,METHOD,PARAM,P1,P2,P3,P4,P5)

Parameters

TFR :

time-frequency representation.

SIG :

signal in the time-domain.

T :

time instants.

METHOD :

chosen representation (name of the corresponding sci-file)

PARAM :

visualization parameter vector : PARAM = [DISPLAY LINLOG THRESHOLD LEVNUMB NF2 LAYOUT FS ISGRID fmin fmax] where

DISPLAY :

1..5 for contour, imagesc, pcolor, surf or mesh

LINLOG :

0/1 for linearly/logarithmically spaced levels

THRESHOLD :

is the visualization threshold, in %

LEVELNUMB :

is the number of levels used with contour

NF2 :

is the number of frequency bins displayed

LAYOUT :

determines the layout of the figure : TFR alone (1), TFR and SIG (2), TFR and spectrum (3), TFR and SIG and spectrum (4), add 4 if you want a colorbar

FS :

is the sampling frequency (may be set to 1.0)

ISGRID :

depends on the grids' presence : isgrid=isgridsig+2*isgridspec+4*isgridtfr where isgridsig=1 if a grid is present on the signal and =0 if not, and so on

fmin :

smallest normalized frequency

fmax :

highest normalized frequency

P1..P5:

parameters of the representation. Run the file tfrparam(METHOD) to know the meaning of P1..P5.

Description

tfrview allows to visualize a time-frequency representation. tfrview is called through tfrqview from any tfr* function.

See also

Authors

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