Internal helper for "lower_upper", "upper_lower". This helper returns a logical vector with TRUE for the first and every second string of those which contain an alphabetic character
Internal helper for "lower_upper", "upper_lower". This helper returns a logical vector with TRUE for the first and every second string of those which contain an alphabetic character
relevant(string)
string |
A string (for example names of a data frame). |
A logical vector.
Malte Grosser, malte.grosser@gmail.com
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