Cody

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

Solution 2170664

Submitted on 23 Mar 2020 by Nikolaos Nikolaou
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### Test Suite

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

y = 1 1

2   Pass
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))

b = NaN NaN NaN NaN NaN NaN NaN NaN y = 0 0 NaN NaN y = 0 0 NaN NaN NaN NaN y = 0 0 NaN NaN NaN NaN NaN NaN y = 0 0 NaN NaN NaN NaN NaN NaN 1 1 NaN NaN

3   Pass
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))

y = 1 1 2 2 y = 1 1 2 2 3 3 4 4 5 5

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

y = 1 2 y = 1 2 3 4 y = 1 2 3 4 5 6 y = 1 2 3 4 5 6 7 8 y = 1 2 3 4 5 6 7 8 9 10

5   Pass
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))

y = 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.6046 0.1913 0.9362 0.1107 0.2193 y = 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.6046 0.1913 0.9362 0.1107 0.2193 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2546 0.5496 0.2781 0.7114 0.1511 y = 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.6046 0.1913 0.9362 0.1107 0.2193 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2546 0.5496 0.2781 0.7114 0.1511 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

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