Filter Design Toolbox

copyobj

Make an independent copy of a quantizer, quantized filter, or quantized FFT

Syntax

• obj1 = copyobj(obj)
  [obj1,obj2,...] = copyobj(obja,objb,...)
  

Description

obj1 = copyobj(obj) makes a copy of obj and returns it in obj1. obj can be a quantizer, quantized filter, or quantized FFT.

[obj1,obj2,...] = copyobj(obja,objb,...) copies obja into obj1, objb into obj2, and so on. All objects can be quantizers, quantized filters, or quantized FFTs.

Using copyobj to copy a quantizer, quantized filter, or quantized FFT is not the same as using the command syntax object1 = object to copy a quantized object. Quantized filters, quantized FFTs, and quantizers have memory (their read-only properties). When you use copyobj, the resulting copy is independent of the original item--it does not share the original object's memory, such as the values of the properties min, max, noverflows, or noperations. Using object1 = object creates a new object that is an alias for the original and shares the original object's memory, and thus its property values.

Examples

• q = quantizer('CoefficientFormat',[8 7]);
  q1 = copyobj(q);
  

You can combine quantizers and quantized filters in the same copyobj command. You cannot include quantized FFTs with other quantized objects in one copyobj command.

• hq = qfilt;
  q=quantizer;
  [hq1,q1] = copyobj(hq,q)
  

See Also
qfilt, qfft, quantizer, get, set

convert

denormalmax