Cody

# Problem 38. Return a list sorted by number of occurrences

Solution 1657204

Submitted on 23 Oct 2018 by Bob Tivnan
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### Test Suite

Test Status Code Input and Output
1   Pass
x = [1 2 2 2 3 3 7 7 93] y_correct = [2 3 7 1 93]; assert(isequal(popularity(x),y_correct))

x = 1 2 2 2 3 3 7 7 93 m = 0 lu = 5 h = Histogram with properties: Data: [1 2 2 2 3 3 7 7 93] Values: [1×93 double] NumBins: 93 BinEdges: [1×94 double] BinWidth: 1 BinLimits: [1 94] Normalization: 'count' FaceColor: 'auto' EdgeColor: [0 0 0] Show all properties v = Columns 1 through 30 1 3 2 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Columns 31 through 60 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Columns 61 through 90 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Columns 91 through 93 0 0 1 c = Columns 1 through 30 3 2 2 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Columns 31 through 60 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Columns 61 through 90 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Columns 91 through 93 0 0 0 i = Columns 1 through 30 2 3 7 1 93 4 5 6 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Columns 31 through 60 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 Columns 61 through 90 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 Columns 91 through 93 90 91 92 y = 2 3 7 1 93

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2   Pass
x = [-1 19 20 -1 -1 87 19 34 19 -1 21 87 20 10 20 34 19 -1]; y_correct = [-1 19 20 34 87 10 21]; assert(isequal(popularity(x),y_correct))

m = 2 lu = 7 h = Histogram with properties: Data: [-1 19 20 -1 -1 87 19 34 19 -1 21 87 20 10 20 34 19 -1] Values: [1×89 double] NumBins: 89 BinEdges: [1×90 double] BinWidth: 1 BinLimits: [-1 88] Normalization: 'count' FaceColor: 'auto' EdgeColor: [0 0 0] Show all properties v = Columns 1 through 30 5 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 4 3 1 0 0 0 0 0 0 0 Columns 31 through 60 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Columns 61 through 89 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 c = Columns 1 through 30 5 4 3 2 2 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Columns 31 through 60 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Columns 61 through 89 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 i = Columns 1 through 30 1 21 22 36 89 12 23 2 3 4 5 6 7 8 9 10 11 13 14 15 16 17 18 19 20 24 25 26 27 28 Columns 31 through 60 29 30 31 32 33 34 35 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 Columns 61 through 89 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 y = -1 19 20 34 87 10 21

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