Does "All the data still" mean, that the fields are not re-ordered? A lot of the solutions change the order of the fields.
Currently, Matlab has the function renameStructField.
When I run the test suite on my computer, this solution works. It passes the test suite.
This fails, if the fieldname to be replaced appears as part of another fieldname. Example: S.ab=1; S.a=2; renamefield(S, 'a', 'c')
Calculate the Levenshtein distance between two strings
Back to basics 15 - classes
find the maximum element of the matrix
Binary code (array)
Find the longest sequence of 1's in a binary sequence.
Sort a list of complex numbers based on far they are from the origin.
The Goldbach Conjecture, Part 2
Read a column of numbers and interpolate missing data
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