pub fn title<D: Dimension>(a: &StringArray<D>) -> FerrayResult<StringArray<D>>Expand description
Title-case each string element: each word starts with a titlecased
character and all remaining cased characters are lowercased, matching
Python str.title / numpy.char.title.
A character is word-initial when the preceding character is not cased
(digits and punctuation are not cased, so a letter following one is
titlecased). The tail uses the whole-string lowercase so a word-final
Σ becomes ς (final sigma) per the Unicode Final_Sigma rule.
§Errors
Returns an error if the internal array construction fails.