Cody

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

Solution 1854726

Submitted on 20 Jun 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))

y = 1

Assertion failed.

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))

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

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))

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

Assertion failed.

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))

y = 1 y = 1 2 y = 1 2 3 y = 1 2 3 5 y = 1 2 3 5 7 y = 1 2 3 5 7 9

Assertion failed.

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))

y = 0 0 0 0 0 y = 0 0 0 0 0 0 0 0 0 0 y = 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 y = 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2750 0.4515 0.9237 0.5635 0.3994 y = 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2750 0.4515 0.9237 0.5635 0.3994 0 0 0 0 0 y = 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2750 0.4515 0.9237 0.5635 0.3994 0 0 0 0 0 0 0 0 0 0 y = 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2750 0.4515 0.9237 0.5635 0.3994 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 y = 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2750 0.4515 0.9237 0.5635 0.3994 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 y = 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2750 0.4515 0.9237 0.5635 0.3994 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0277 0.0855 0.1801 0.2389 0.1878

Index exceeds the number of array elements (2). Error in insertRows (line 4) if i == IND(ct) + 1 Error in Test5 (line 5) assert(isequal(insertRows(A, IND, b), y_correct))

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