COMPRESS: SAS Function strips characters from the string
In SAS 9.1.3 , an extra argument ( MODIFIER ) is added to the SAS character string function COMPRESS and these modifiers modifies the action of the COMPRESS function; Syntax : COMPRESS ( <, chars><, modifiers>) ; Following characters can be used as modifiers. a – Compress or Delete all upper and lower case characters from String. ak - Compress or Delete alphabetic characters(1,2,3 etc) from String. kd- Compress or Delete characters(aplabets) from String.( Keeps only digits). d – Compress or Delete numerical values from String. i – Compress or Delete specified characters both upper and lower case from String. k – keeps the specified characters in the string instead of removing them. l – Compress or Delete lowercase characters from String. p – Compress or Delete Punctuation characters from String. s – Compress or delete spaces from String. This is default. u – Compress or Delete uppercase characters from String. See the Example below: data ...