Filter Design Toolbox

isfixed

Test and return whether a quantizer is fixed point

Syntax

• res = isfixed(q)
  

Description

res = isfixed(q) returns res = 1 (logical true) when q is a fixed-point quantizer. When q is not fixed point, isfixed returns res = 0. When you develop programs that use one or more quantizers, you may find this function useful to determine the mode of a quantizer within your program, and respond to the returned value.

Examples

Demonstrate the results of testing both fixed-point and nonfixed-point quantizers:

• q = quantizer('double'); % Create a floating-point quantizer
  res = isfixed(q)
  res = 
  0
  q = quantizer('ufixed'); % Create a fixed-point quantizer
  res = isfixed(q)
  res = 
  1
  

See Also

isfloat, quantizer

isfir

isfloat