Cody

# Problem 42858. Block average ignoring NaN values

Solution 1034689

Submitted on 28 Oct 2016 by Alfonso Nieto-Castanon
• Size: 37
• This is the leading solution.
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### Test Suite

Test Status Code Input and Output
1   Pass
A = [1 2 3 4 5 6 7 8 NaN]; subsz = [1 3]; B = [2 5 (7+8)/2]; assert(norm(B-blknanavg(A,subsz)) < 1e-10)

2   Pass
A = [1 2 3 4 NaN 6 7 NaN 9].'; subsz = [3,1]; B = [2 5 8].'; assert(norm(B-blknanavg(A,subsz)) < 1e-10)

3   Pass
A = [1 1 1 2 NaN 2 1 NaN 1 NaN 2 NaN 3 3 3 NaN NaN 4 3 3 3 NaN 4 4]; subsz = [2 3]; B = [1 2 3 4]; assert(norm(B-blknanavg(A,subsz)) < 1e-10)

4   Pass
A = rand(100,300); A(randperm(numel(A),10)) = NaN; subsz = size(A); B = mean(A(:),'omitnan'); assert(norm(B-blknanavg(A,subsz)) < 1e-10)

5   Pass
subsz = [4,6]; B = 10*rand(10,20); A = repelem(B,subsz(1),subsz(2)); A(randperm(numel(A),10)) = NaN; assert(norm(B-blknanavg(A,subsz)) < 1e-10)

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