The Life-Changing Magic of Tidying Text | Julia Silge

[utterances-bot]

The Life-Changing Magic of Tidying Text | Julia Silge

An R package for text mining using tidy data principles

https://juliasilge.com/blog/life-changing-magic/

[waragamwangi]

Hello Julia,
I have just started learning Text Mining with R and came across this regular expression " regex("^chapter [\divxlc]", Would you kindly explain what " \divxlc " is searching for? I understand the ^chapter part, however, I dont understand the last part.
Thank you in advance.

[juliasilge]

That's a great question @waragamwangi! That is to identify roman numerals, like to find "chapter iv". It doesn't look like it's necessary in this example, but can be good for other datasets.

[waragamwangi]

Thank you @juliasilge . Its clear now. I can see the regular expression was able to capture chapters in Mansfield Park and Emma books which are written in roman numbers.

That's a great question @waragamwangi! That is to identify roman numerals, like to find "chapter iv". It doesn't look like it's necessary in this example, but can be good for other datasets.