Cody

# Problem 44247. Delete the column with all 0 !

Solution 1698519

Submitted on 22 Dec 2018 by HH
• Size: 9
• This is the leading solution.
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### Test Suite

Test Status Code Input and Output
1   Pass
x=[1 0 0 4;5 0 7 0; 9 0 11 0] y_correct = [1 0 4;5 7 0; 9 11 0] assert(isequal(DelCols(x),y_correct))

x = 1 0 0 4 5 0 7 0 9 0 11 0 y_correct = 1 0 4 5 7 0 9 11 0 [Warning: Function assert has the same name as a MATLAB builtin. We suggest you rename the function to avoid a potential name conflict.] [> In unix (line 32) In DelCols (line 2) In ScoringEngineTestPoint1 (line 3) In solutionTest (line 3)]

2   Pass
x=[1:5;2:6;3:7] y_correct = [1:5;2:6;3:7] assert(isequal(DelCols(x),y_correct))

x = 1 2 3 4 5 2 3 4 5 6 3 4 5 6 7 y_correct = 1 2 3 4 5 2 3 4 5 6 3 4 5 6 7 [Warning: Function assert has the same name as a MATLAB builtin. We suggest you rename the function to avoid a potential name conflict.] [> In unix (line 32) In DelCols (line 2) In ScoringEngineTestPoint2 (line 3) In solutionTest (line 5)]

3   Pass
x=zeros(10) x(:,3)=7 y_correct =repmat(7,1,10)' assert(isequal(DelCols(x),y_correct))

x = 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 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 x = 0 0 7 0 0 0 0 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 7 0 0 0 0 0 0 0 y_correct = 7 7 7 7 7 7 7 7 7 7 [Warning: Function assert has the same name as a MATLAB builtin. We suggest you rename the function to avoid a potential name conflict.] [> In unix (line 32) In DelCols (line 2) In ScoringEngineTestPoint3 (line 4) In solutionTest (line 7)]