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Time Frequency Toolbox >> Time Frequency Toolbox > Post-Processing or Help to the Interpretation > holder

holder

Estimate the Holder exponent through an affine TFR.

Calling Sequence

H=holder(TFR,F,N1,N2,T)

Parameters

TFR :

affine time-frequency representation.

F :

frequency values of the spectral analysis.

N1 :

indice of the minimum frequency for the linear regression. (default : 1).

N2 :

indice of the maximum frequency for the linear regression. (default : length(F)).

T :

time vector. If T is omitted, the function returns the global estimate of the Holder exponent. Otherwise, it returns the local estimates H(T) at the instants specified in T.

H :

output value (if T omitted) or vector (otherwise) containing the Holder estimate(s).

Description

holder estimates the Holder exponent of a function through an affine time-frequency representation of it, and plots the frequency marginal and the regression line.

Examples

S=altes(128); [TFR,T,F]=tfrscalo(S,1:128,8);
H=holder(TFR,F,1,length(F));

Authors

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