Problem 86. Renaming a field in a structure array

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MATLAB has a setfield and a rmfield, but not a "rename field". You need to write one for this problem.

Example

Suppose

 s(1).foo = 1;
 s(1).bar = 'one';
 s(2).foo = 2;
 s(2).bar = 'two';

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.

 s(1).foo = 1;
 s(1).baz = 'one';
 s(2).foo = 2;
 s(2).baz = 'two';

[Problem from Matthew Simoneau]

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2888 Solutions

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Last Solution submitted on Feb 04, 2026

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Problem 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.

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