Cody

# Problem 67. Find common elements in matrix rows

Solution 337723

Submitted on 23 Oct 2013 by Eli Gershon
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### Test Suite

Test Status Code Input and Output
1   Pass
%% x = []; y_correct = []; assert(isequal(common_by_row(x),y_correct))

y = [] n = 0

2   Pass
%% x = [1e100; 1e100]; y_correct = [1e100]; assert(isequal(common_by_row(x),y_correct))

y = [] n = 2 y = 1.0000e+100 y = 1.0000e+100

3   Pass
%% x = [1; 2]; y_correct = []; assert(isequal(common_by_row(x),y_correct))

y = [] n = 2 y = 1 y = Empty matrix: 1-by-0 y = []

4   Pass
%% x = ones(10); y_correct = [1]; assert(isequal(common_by_row(x),y_correct))

y = [] n = 10 y = 1 1 1 1 1 1 1 1 1 1 y = 1 y = 1 y = 1 y = 1 y = 1 y = 1 y = 1 y = 1 y = 1

5   Pass
%% x = magic(10); y_correct = []; assert(isequal(common_by_row(x),y_correct))

y = [] n = 10 y = 92 99 1 8 15 67 74 51 58 40 y = Empty matrix: 1-by-0 y = Empty matrix: 1-by-0 y = Empty matrix: 1-by-0 y = Empty matrix: 1-by-0 y = Empty matrix: 1-by-0 y = Empty matrix: 1-by-0 y = Empty matrix: 1-by-0 y = Empty matrix: 1-by-0 y = Empty matrix: 1-by-0 y = []

6   Pass
%% x = wilkinson(9); y_correct = [0 1]; assert(isequal(common_by_row(x),y_correct))

y = [] n = 9 y = 4 1 0 0 0 0 0 0 0 y = 0 1 y = 0 1 y = 0 1 y = 0 1 y = 0 1 y = 0 1 y = 0 1 y = 0 1

7   Pass
%% x = [3 -2 1 NaN; NaN 0 -2 3]; y_correct = [-2 3]; assert(isequal(common_by_row(x),y_correct))

y = [] n = 2 y = 3 -2 1 NaN y = -2 3