Description
Extract operating system family (OS name) from user agent string, based on ua_parser.
Syntax
OsFamily(user_agent_string)
Examples
OsFamily('Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0; Crebergallery spider robot)') returns 'Windows 7'
Return value datatype
string
Notes
Returns "Other" if OS family can't be extracted from string.
Impact of null value
If input is null, returns null.