Simple Tutorial on Regular Expressions and String Manipulations in R Tutorials & Notes Machine Learning HackerEarth

Earlier we could match and extract the required information from the given text data using Ctrl F, Ctrl C, and Ctrl V. Isn't it? Probably, some of us still do it when the data is small. But this approach is slow and prone to lots of mistakes. In text analytics, the abundance of data makes such keyboard shortcut hacks obsolete. Because of the data volume and its complicated (unstructured) nature, we require much faster, convenient, and robust ways of information extraction from text data.