Can someone suggest how to efficiently model a non-linear quantizer in MATLAB code?

A linear quantizer can be efficiently modeled with the MATLAB round function. But a non-linear quantizer has irregular transitions and therefore cannot be modeled with the round function.

[Merged information from duplicate question]

QUANTIZ() is a search based quantizer and therefore has slow performance. Is there another MATLAB function or modeling technique known to the MATLAB community that has faster performance?

When I model RF systems and stream large quantities of input sample data, overall system performance is slow when quantizing with quantiz() . I faster quantizer function would increase productivity.

Thanks.

[Raj Bhattacharjea]

It never occured to me to use round before reading this post. I just wanted to say thank you for this idea to use "round". For uniform quantization, it is so much faster than quantiz!

Answer 1

[Walter Roberson]

histc() perhaps.

Anything beyond that would probably depend upon the characteristics of the breakpoints, and would probably start to depend upon MATLAB implementation characteristics.