Cody

Problem 67. Find common elements in matrix rows

Solution 854644

Submitted on 22 Mar 2016 by David Schafer
This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.

This solution is outdated. To rescore this solution, sign in.

Test Suite

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

siz = 0 0

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

siz = 2 1 z = 1.0000e+100 z = 1.0000e+100 z = 1.0000e+100

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

siz = 2 1 z = 1 z = Empty matrix: 1-by-0 z = Empty matrix: 1-by-0

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

siz = 10 10 z = 1 1 1 1 1 1 1 1 1 1 z = 1 z = 1 z = 1 z = 1 z = 1 z = 1 z = 1 z = 1 z = 1 z = 1

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

siz = 10 10 z = 92 99 1 8 15 67 74 51 58 40 z = Empty matrix: 1-by-0 z = Empty matrix: 1-by-0 z = Empty matrix: 1-by-0 z = Empty matrix: 1-by-0 z = Empty matrix: 1-by-0 z = Empty matrix: 1-by-0 z = Empty matrix: 1-by-0 z = Empty matrix: 1-by-0 z = Empty matrix: 1-by-0 z = Empty matrix: 1-by-0

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

siz = 9 9 z = 4 1 0 0 0 0 0 0 0 z = 0 1 z = 0 1 z = 0 1 z = 0 1 z = 0 1 z = 0 1 z = 0 1 z = 0 1 z = 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))

siz = 2 4 z = 3 -2 1 NaN z = -2 3 z = -2 3

Suggested Problems

More from this Author95

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!