stringr Cheat Sheet

Kevin Feasel

2017-11-06

R

David Smith points out a cheat sheet for dealing with strings in R:

The RStudio team has created another very useful cheat sheet for RWorking with Strings. This cheat sheet provides an example-laden menu of operations you can perform on strings (character verctors) in R using the stringr package. While base R provides a solid set of string manipulation functions, the stringr package functions are simpler, more consistent (making them easy to use with the pipe operator), and more like the Ruby or Python way of handling string operations.

Click through for a link to the PDF.

Related Posts

The Basics Of PCA In R

Prashant Shekhar gives us an overview of Principal Component Analysis using R: PCA changes the axis towards the direction of maximum variance and then takes projection on this new axis. The direction of maximum variance is represented by Principal Components (PC1). There are multiple principal components depending on the number of dimensions (features) in the […]

Read More

Tidy Data Is Normalized Data

I emphasize the link between a tidy dataframe and a normalized data structure: The kicker, as Wickham describes on pages 4-5, is that normalization is a critical part of tidying data.  Specifically, Wickham argues that tidy data should achieve third normal form. Now, in practice, Wickham argues, we tend to need to denormalize data because […]

Read More

Categories

November 2017
MTWTFSS
« Oct Dec »
 12345
6789101112
13141516171819
20212223242526
27282930