Problem 589. Matrix indexing with two vectors of indices

Solution 146440

Submitted on 10 Oct 2012 by Wenjian Yu

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Test	Status	Code Input and Output
1	Pass	%% M = rand(4); a = [4 3 2 1]; b = [1 2 3 4]; v_correct = M([4 7 10 13]); assert(isequal(twoIndex(M,a,b),v_correct)) ans = 0.5886 0.7971 0.8490 0.1102
2	Pass	%% M = rand(4); a = [3 3 1 3]; b = [1 1 3 1]; v_correct = M([3 3 9 3]); assert(isequal(twoIndex(M,a,b),v_correct)) ans = 0.0609 0.0609 0.8766 0.0609
3	Pass	%% M = rand(100); [a,b] = size(M); v_correct = M(end); assert(isequal(twoIndex(M,a,b),v_correct)) ans = 0.2730
4	Pass	%% M = rand(100); a = []; b = []; assert(isempty(twoIndex(M,a,b))) ans = []
5	Pass	%% M = 1; a = [1 1 1 1 1]; b = [1 1 1 1 1]; v_correct = [1 1 1 1 1]; assert(isequal(twoIndex(M,a,b),v_correct)) ans = 1 1 1 1 1