when the variable is a struct it is unclear whether "preserving the data type" should preserve the field names or not (testsuite expects the latter)
Structure field names are not required to be preserved.
Renaming a field in a structure array
Volume of this donut
Omit columns averages from a matrix
Back to basics 2 - Function Path
Determine the square root
Compute the cokurtosis of a given portfolio.
Replace all zeros and NaNs in a matrix with the string 'error'
From a given cell array of strings, extract the non-unique strings.
Sum the entries of each column of a matrix which satisfy a logical condition.
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