Cody

Problem 796. Removing rows from a matrix is easy - but what about inserting rows?

Solution 2019373

Submitted on 14 Nov 2019
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Test Suite

Test Status Code Input and Output
1   Fail
A = 1; IND = 1; b = 1; y_correct = [1;1]; assert(isequal(insertRows(A, IND, b), y_correct))

Index in position 1 exceeds array bounds (must not exceed 1). Error in insertRows (line 3) A(IND(k)+2,:) = A(IND(k)+1,:) Error in Test1 (line 5) assert(isequal(insertRows(A, IND, b), y_correct))

2   Fail
A = [0 0; 1 1]; IND = [1 1 1 2]; b = NaN; y_correct = [0 0;NaN NaN;NaN NaN;NaN NaN;1 1;NaN NaN]; assert(isequalwithequalnans(insertRows(A, IND, b), y_correct))

A = 0 0 1 1 1 1 A = 0 0 NaN NaN 1 1 A = 0 0 NaN NaN NaN NaN A = 0 0 NaN NaN NaN NaN A = 0 0 NaN NaN NaN NaN A = 0 0 NaN NaN NaN NaN A = 0 0 NaN NaN NaN NaN NaN NaN A = 0 0 NaN NaN NaN NaN NaN NaN y = 0 0 NaN NaN NaN NaN NaN NaN

Assertion failed.

3   Fail
A = [1 1; 3 3; 4 4]; IND = [1 3]; b = [2 2; 5 5]; y_correct = [1 1;2 2;3 3;4 4;5 5]; assert(isequal(insertRows(A, IND, b), y_correct))

A = 1 1 3 3 3 3

Unable to perform assignment because the size of the left side is 1-by-2 and the size of the right side is 2-by-2. Error in insertRows (line 4) A(IND(k)+1,:) = b Error in Test3 (line 5) assert(isequal(insertRows(A, IND, b), y_correct))

4   Fail
A = (1:2:10)'; IND = 1:5; b = (2:2:10)'; y_correct = (1:10)'; assert(isequal(insertRows(A, IND, b), y_correct))

A = 1 3 3 7 9

Unable to perform assignment because the size of the left side is 1-by-1 and the size of the right side is 5-by-1. Error in insertRows (line 4) A(IND(k)+1,:) = b Error in Test4 (line 5) assert(isequal(insertRows(A, IND, b), y_correct))

5   Fail
A = zeros(10,5); IND = [3,7]; b = rand(2,5); y_correct = [zeros(3,5); b(1,:); zeros(4,5); b(2,:); zeros(3,5)]; assert(isequal(insertRows(A, IND, b), y_correct))

A = 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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Unable to perform assignment because the size of the left side is 1-by-5 and the size of the right side is 2-by-5. Error in insertRows (line 4) A(IND(k)+1,:) = b Error in Test5 (line 5) assert(isequal(insertRows(A, IND, b), y_correct))

6   Pass
assert(isempty(strfind(evalc('type insertRows'), 'regexp')));