Cody

Problem 263. Nonuniform quantizer as a piecewise constant function

Solution 173741

Submitted on 6 Dec 2012 by J.R.! Menzinger
  • Size: 18
  • This is the leading solution.
This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.
Solve This Problem View on Solution Map

Test Suite

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

ans = -3.5000

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

ans = 0.5000

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

ans = 1.5000

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

ans = 1.5000

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

ans = -3.5000

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

ans = 3.5000

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)));

ans = Columns 1 through 10 -3.5000 -3.5000 -1.5000 -1.5000 -1.5000 -1.5000 -0.5000 -0.5000 0.5000 0.5000 Columns 11 through 18 1.5000 1.5000 1.5000 1.5000 3.5000 3.5000 3.5000 3.5000

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')));

ans = -3.5000 -3.5000 -1.5000 -1.5000 -1.5000 -1.5000 -0.5000 -0.5000 0.5000 0.5000 1.5000 1.5000 1.5000 1.5000 3.5000 3.5000 3.5000 3.5000

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))));

ans = -3.5000 -1.5000 -0.5000 0.5000 1.5000 3.5000 -3.5000 -1.5000 -0.5000 1.5000 1.5000 3.5000 -1.5000 -1.5000 0.5000 1.5000 3.5000 3.5000

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))));

ans(:,:,1) = -3.5000 -3.5000 -1.5000 -1.5000 -1.5000 -1.5000 ans(:,:,2) = -0.5000 -0.5000 0.5000 0.5000 1.5000 1.5000 ans(:,:,3) = 1.5000 1.5000 3.5000 3.5000 3.5000 3.5000

Suggested Problems

More from this Author5

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!