topic Re: Prxchange with more than 1 condition in SAS Programming

Prxchange with more than 1 condition

Feyng819 — Wed, 28 Feb 2024 16:26:02 GMT

Let’s say I wanna use prxchange to replace the string that starts with “The” or contain the word “world”. How can I use prxchange to achieve the multiple condition?

I only know that to replace the string starts with “the” would be prxchange(“s/\b^(The)\b/ /,-1,variable)
And to replace the string contains “world” would be prxchange(“s/\b(world)\b/ /,-1,variable)
Is there a way to combine the 2? Thanks!

Re: Prxchange with more than 1 condition

FreelanceReinh — Wed, 28 Feb 2024 19:07:16 GMT

Hello @Feyng819,

The simplest way to combine the two replacements would be to apply the second PRXCHANGE function call to the result of the first, i.e., replace "variable" in the second call with the entire prxchange(...) expression of the first. In this particular case, however, it is also possible to use the OR operator (|) like this:

prxchange('s/^The\b|\bworld\b//',-1,variable);

This would remove the word "The" from the beginning of the string in variable as well as all occurrences of the word "world". (Note the case-sensitivity without the "i" modifier at the end of the regular expression.)

Re: Prxchange with more than 1 condition

Feyng819 — Thu, 29 Feb 2024 18:46:21 GMT

Thanks for your help it works perfectly!