Problem 263. Nonuniform quantizer as a piecewise constant function

Solution 99168

Submitted on 15 Jun 2012 by Mark

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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))));