Filter Design Toolbox

isnone

Determine and return whether a quantizer has quantization mode equal to none

Syntax

• res = isnone(q)
  

Description

res = isnone(q) returns res = 1 (logical true) when qauntizer q has mode equal to none. Recall that quantizers may have one of five modes--none, double, fixed, float, or single. When you develop programs that use one or more quantizers, you may find this function useful for determining the mode of a quantizer within your program, and responding to the returned value.

Examples

Create and test two quantizers--one operating in double mode and the other with mode set to none:

• q = quantizer('double'); % Create a double data type quantizer
  res = isnone(q)
  res = 
  0
  q = quantizer('none'); % Create a quantizer with mode = none
  res = isnone(q)
  res = 
  1
  

See Also

isfixed, isfloat

isfloat

islinphase