Problem 1227. Generate a random matrix A of (1,-1)

Solution 198323

Submitted on 30 Jan 2013 by Freddy
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Test Suite

Test Status Code Input and Output
1   Pass
%% positive integers x = 5; assert(isequal(unique(rand_plusminus1(x)),[-1;1]))

2   Pass
%% one element x = 1; assert(isequal(abs(rand_plusminus1(x)),1))

3   Pass
%% zero => empty matrix x = 0; assert(isequal(rand_plusminus1(x),[]))

4   Pass
%% positive integers x = 999; assert(isequal(unique(rand_plusminus1(x)),[-1;1]))

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