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Converts the structure of a filter to a new structure that you specify. Examples

	filter in specifies the input filter.
	target structure specifies the new structure you want to use to design the filter. You can select one of 23 structure types for FIR and IIR filters. 1 FIR Direct Form (default) 2 FIR Direct Form Transposed 3 FIR Symmetric 4 FIR Antisymmetric 5 IIR Direct Form I 6 IIR Direct Form I Transposed 7 IIR Direct Form II 8 IIR Direct Form II Transposed 9 IIR Cascaded Second-Order Sections Form I 10 IIR Cascaded Second-Order Sections Form I Transposed 11 IIR Cascaded Second-Order Sections Form II 12 IIR Cascaded Second-Order Sections Form II Transposed 13 Lattice Allpass (basic sections) 14 Lattice Allpass (one multiplier sections) 15 Lattice Allpass (normalized sections) 16 Lattice AR (basic sections) 17 Lattice AR (one multiplier sections) 18 Lattice AR (normalized sections) 19 Lattice MA (minimum phase) 20 Lattice MA (maximum phase) 21 Lattice ARMA (basic sections) 22 Lattice ARMA (one multiplier sections) 23 Lattice ARMA (normalized sections)
	error in describes error conditions that occur before this VI or function runs. The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node. status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE. code is the error or warning code. The default is 0. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source specifies the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.
	filter out returns the filter with the new structure.
	error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces. Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error. status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred. code is the error or warning code. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning.

Examples

Refer to the following VIs for examples of using the DFD Convert Structure VI:

• labview\examples\Digital Filter Design\Fixed-Point Filters\Structure Selection and Quantization.vi

   

• labview\examples\Digital Filter Design\Getting Started\Change Structure of Filter.vi