Written by Extracts substrings that match a specified regular expression.
Calculates the number of bytes in a given string.
Identifies the position at which a string first appears in text, counting each double-character as two separate characters.
Returns the numeric Unicode value for the first character in the given string.
Returns text with non-printable ASCII characters eliminated.
Transform a numerical value into its corresponding character based on the Unicode standard.
Calculates the numeric value represented by a Roman numeral.
Refer to Z.TEST for more details.
Calculates the right-tailed Student’s distribution for a given value x.
Refer to STDEVP