Problem 760. Duplicate each element of a vector.

Created by Julio

Solve Later

{"relationships":[{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/document","relationshipId":"rId1","target":"/matlab/document.xml"},{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/output","relationshipId":"rId2","target":"/matlab/output.xml"}],"parts":[{"partUri":"/matlab/document.xml","relationship":[],"contentType":"application/vnd.mathworks.matlab.code.document+xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\"?><w:document xmlns:w=\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\"><w:body><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>for an n-dimensional vector x, the function should return another vector 2n-dimension which each element is repeated twice. Example : in->[2 3 NaN 5] and out->[2 2 3 3 NaN NaN 5 5]</w:t></w:r></w:p></w:body></w:document>"},{"partUri":"/matlab/output.xml","contentType":"text/xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?><embeddedOutputs><metaData><evaluationState>manual</evaluationState><layoutState>code</layoutState><outputStatus>ready</outputStatus></metaData><outputArray type=\"array\"/><regionArray type=\"array\"/></embeddedOutputs>"}]}

Solve

Solution Stats

998 Solutions
520 Solvers

Last Solution submitted on Feb 08, 2021

Last 200 Solutions

Problem Comments

Solution Comments

Solution 489792

1 Comment

1 Comment

Harish Maradana on 23 Aug 2014

improve test suit

Solution 274918

1 Comment

1 Comment

Rona on 7 Jul 2013

This solution only works for vectors that are already sorted from low to high :) but it passed the test suite

Solution 183683

1 Comment

1 Comment

Duane Hanselman on 31 Dec 2012

This works in R2012b, but not on cody
function ans = duplicate(x)
[x;x];
x(:)';
end

Problem Recent Solvers520

Problem Tags

vectors

Community Treasure Hunt

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

Start Hunting!

Problem 760. Duplicate each element of a vector.

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers520

Suggested Problems

More from this Author10

Problem Tags

Community Treasure Hunt

Problem 760. Duplicate each element of a vector.

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers520

Suggested Problems

More from this Author10

Problem Tags

Community Treasure Hunt

Players