At 04:45 PM 5/21/2008, Fred C Kopp wrote:
How do I test a user-input text variable to verify that it contains only digits (no letters, punctuation or symbols)? I want to be able to reject an inappropriate entry. It needs to be text because there are often leading zeros.
Fred, Take a look at the ISALPHA and ISDIGIT functions of R:BASE to implement in your specific situation. Hope that helps! Very Best R:egards, Razzak.
