Problem 42633. Cumulative maximum of an array

Created by Matthew Eicholtz

Solve Later

{"relationships":[{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/document","targetMode":"","relationshipId":"rId1","target":"/matlab/document.xml"},{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/output","targetMode":"","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\"?>\n<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>Find the cumulative maximum of an array without using the built-in function</w:t></w:r><w:r><w:t> </w:t></w:r><w:hyperlink w:docLocation=\"http://www.mathworks.com/help/matlab/ref/cummax.html\"><w:r><w:t>cummax</w:t></w:r></w:hyperlink><w:r><w:t> (and a few others). Your function should act identically to cummax, allowing the same inputs.</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:rPr><w:b/></w:rPr><w:t>Examples</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA[If X = [0 4 3\n        6 5 2]\n\ncumax(X,1) is [0 4 3  and cumax(X,2) is [0 4 4\n               6 5 3]                    6 6 6]\n\ncumax(X,1,'reverse') is [6 5 3  and cumax(X,2,'reverse') is [4 4 3\n                         6 5 2]                              6 5 2]\n\nAlso,\ncumax([8 9 1 10 6 1 3 6 10 10]) returns [8 9 9 10 10 10 10 10 10 10]\n\ncumax([8 9 1 10 6 1 3 6 10 10]') returns [8 9 9 10 10 10 10 10 10 10]']]></w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>See also</w:t></w:r><w:r><w:t> </w:t></w:r><w:hyperlink w:docLocation=\"http://www.mathworks.com/matlabcentral/cody/problems/42631-cumulative-minimum-of-an-array\"><w:r><w:t>cumin</w:t></w:r></w:hyperlink><w:r><w:t>.</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

89 Solutions
23 Solvers

Last Solution submitted on Jun 30, 2020

Last 200 Solutions

Problem Comments

Problem Recent Solvers23

Problem Tags

cummax matrix manipulation

Problem 42633. Cumulative maximum of an array

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers23

Suggested Problems

More from this Author44

Problem Tags

Problem 42633. Cumulative maximum of an array

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers23

Suggested Problems

More from this Author44

Problem Tags

Players