Cody

# Problem 263. Nonuniform quantizer as a piecewise constant function

Solution 261215

Submitted on 14 Jun 2013 by andrea84
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### Test Suite

Test Status Code Input and Output
1   Pass
%% assert(isequal(nonuniformQuantizer(-23), -3.5));

``` ```

2   Pass
%% assert(isequal(nonuniformQuantizer(0), 0.5));

``` ```

3   Pass
%% assert(isequal(nonuniformQuantizer(1.1), 1.5));

``` ```

4   Pass
%% assert(isequal(nonuniformQuantizer(2.9), 1.5));

``` ```

5   Pass
%% assert(isequal(nonuniformQuantizer(-Inf), -3.5));

``` ```

6   Pass
%% assert(isequal(nonuniformQuantizer(Inf), 3.5));

``` ```

7   Pass
%% x = -4.0:0.5:4.5; y = [-3.5 -3.5 -1.5 -1.5 -1.5 ... -1.5 -0.5 -0.5 0.5 0.5 1.5 ... 1.5 1.5 1.5 3.5 3.5 3.5 3.5]; assert(isequal(y, nonuniformQuantizer(x)));

``` ```

8   Pass
%% x = -4.0:0.5:4.5; y = [-3.5 -3.5 -1.5 -1.5 -1.5 ... -1.5 -0.5 -0.5 0.5 0.5 1.5 ... 1.5 1.5 1.5 3.5 3.5 3.5 3.5]; assert(isequal(y', nonuniformQuantizer(x')));

``` ```

9   Pass
%% x = -4.0:0.5:4.5; y = [-3.5 -3.5 -1.5 -1.5 -1.5 ... -1.5 -0.5 -0.5 0.5 0.5 1.5 ... 1.5 1.5 1.5 3.5 3.5 3.5 3.5]; assert(isequal(reshape(y,3,6), ... nonuniformQuantizer(reshape(x,3,6))));

``` ```

10   Pass
%% x = -4.0:0.5:4.5; y = [-3.5 -3.5 -1.5 -1.5 -1.5 ... -1.5 -0.5 -0.5 0.5 0.5 1.5 ... 1.5 1.5 1.5 3.5 3.5 3.5 3.5]; assert(isequal(reshape(y,1,6,3), ... nonuniformQuantizer(reshape(x,1,6,3))));

``` ```