Spotfire 中的正则表达式

Question

I'm trying to use RXExtract as a calculated column to dissect [column1] by it's values. [column1] looks like "location- 1234 (abc)" and I'd like to just separate the "1234" out of it.

My current code in Spotfire is RXExtract([SM Code], '(\d)(\d)(\d)(\d)', 1 ) but I get an "invalid escape sequence error". Where am I going wrong?

Thanks!

Answer 1

Try

RXExtract([SM Code], '\b\d{4}\b', 1)

this will match any four consecutive or unconsecutive digits.