IDL Wavelet Toolkit User's Guide

78 Chapter 4: IDL Wavelet Toolkit ReferenceWV_FN_COIFLETSyntaxThe WV_FN_COIFLET function constructs wavelet coefficients for the coifletwavelet function.Result = WV_FN_COIFLET( [Order, Scaling, Wavelet, Ioff, Joff] )Return ValueThe returned value of this function is an anonymous structure of information aboutthe particular wavelet.Tag Type DefinitionFAMILY STRING ‘Coiflet’ORDER_NAME STRING ‘Order’ORDER_RANGE INTARR(3) [1, 5, 1] Valid order range [first, last, default]ORDER INT The chosen OrderDISCRETE INT 1 [0=continuous, 1=discrete]ORTHOGONAL INT 1 [0=nonorthogonal, 1=orthogonal]SYMMETRIC INT 2 [0=asymmetric, 1=symm., 2=near symm.]SUPPORT INT 6*Order – 1 [Compact support width]MOMENTS INT 2*Order [Number of vanishing moments]REGULARITY DOUBLE The number of continuous derivativesArgumentsTable 4-6: Structure Tags for ResultOrderA scalar that specifies the order number for the wavelet. The default is 1.WV_FN_COIFLETIDL Wavelet Toolkit