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WV_FN_HAAR

WV_FN_HAAR

The WV_FN_HAAR function constructs wavelet coefficients for the Haar wavelet function.

Note: The Haar wavelet is the same as the Daubechies wavelet of order 1.

Syntax

Result = WV_FN_HAAR( [Order, Scaling, Wavelet, Ioff, Joff] )

Return Value

The returned value of this function is an anonymous structure of information about the particular wavelet.

 Tag Type Definition FAMILY STRING ‘Haar’ ORDER_NAME STRING ‘Order’ ORDER_RANGE INTARR(3) [1, 1, 1] Valid order range [first, last, default] ORDER INT 1 DISCRETE INT 1 [0=continuous, 1=discrete] ORTHOGONAL INT 1 [0=nonorthogonal, 1=orthogonal] SYMMETRIC INT 0 [0=asymmetric, 1=symm., 2=near symm.] SUPPORT INT 1 [Compact support width] MOMENTS INT 1 [Number of vanishing moments] REGULARITY DOUBLE 0d [Number of continuous derivatives]

Arguments

Order

A scalar that specifies the order number for the wavelet. The default is 1.

Scaling

On output, contains a vector of double-precision scaling (father) coefficients.

Wavelet

On output, contains a vector of double-precision wavelet (mother) coefficients.

Ioff

On output, contains an integer that specifies the support offset for Scaling.

Joff

On output, contains an integer that specifies the support offset for Wavelet.

Note: If none of the above arguments are present then the function will return the Result structure using the default Order.

None.

Version History

 5.3 Introduced

Resources and References

Daubechies, I., 1992: Ten Lectures on Wavelets, SIAM.

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