Problem 86. Renaming a field in a structure array

Created by Cody Team

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>MATLAB has a</w:t></w:r><w:r><w:t> </w:t></w:r><w:hyperlink w:docLocation=\"http://www.mathworks.com/help/techdoc/ref/setfield.html\"><w:r><w:t>setfield</w:t></w:r></w:hyperlink><w:r><w:t> and a</w:t></w:r><w:r><w:t> </w:t></w:r><w:hyperlink w:docLocation=\"http://www.mathworks.com/help/techdoc/ref/rmfield.html\"><w:r><w:t>rmfield</w:t></w:r></w:hyperlink><w:r><w:t>, but not a \"rename field\". You need to write one for this problem.</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>Example</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Suppose</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA[ s(1).foo = 1;\n s(1).bar = 'one';\n s(2).foo = 2;\n s(2).bar = 'two';]]></w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>and you want the field \"bar\" to be renamed \"baz\". Given the inputs s, oldField, and newField, you must return this output structure with all the data still in place.</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA[ s(1).foo = 1;\n s(1).baz = 'one';\n s(2).foo = 2;\n s(2).baz = 'two';]]></w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>[Problem from Matthew Simoneau]</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

2571 Solutions
1319 Solvers

Last Solution submitted on Jun 05, 2023

Last 200 Solutions

Problem Comments

2 Comments

2 Comments

Jan on 27 Feb 2012

Does "All the data still" mean, that the fields are not re-ordered? A lot of the solutions change the order of the fields.

Rafael S.T. Vieira on 12 Jun 2020

Currently, Matlab has the function renameStructField.

Solution Comments

Show comments

Problem Recent Solvers1319

Problem Tags

Community Treasure Hunt

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

Start Hunting!

Problem 86. Renaming a field in a structure array

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers1319

Suggested Problems

More from this Author96

Problem Tags

Community Treasure Hunt

Problem 86. Renaming a field in a structure array

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers1319

Suggested Problems

More from this Author96

Problem Tags

Community Treasure Hunt

Players