6.17 Wrapping and Words

20180608 Formatting a text string into a neat paragraph of defined maximum width is another operation we often find ourselves wanting. The stringr::str_wrap() function will do this for us.

st <- "All the Worlds a stage, All men are merely players"
cat(str_wrap(st, width=25))
## All the Worlds a stage,
## All men are merely
## players

Words of course form the basis for wrapping a sentence. We may wish to extract words from a sentence ourselves for further processing. Here we us stringr::word() to do so.We specify the positions of the word to be extracted from the setence. The default separator value is space.

st <- c("The quick brown fox", "jumps on the brown dog")
word(st, start=1, end=2)
## [1] "The quick" "jumps on"
word(st, start=1, end=-2)
## [1] "The quick brown"    "jumps on the brown"


Your donation will support ongoing availability and give you access to the PDF version of this book. Desktop Survival Guides include Data Science, GNU/Linux, and MLHub. Books available on Amazon include Data Mining with Rattle and Essentials of Data Science. Popular open source software includes rattle, wajig, and mlhub. Hosted by Togaware, a pioneer of free and open source software since 1984. Copyright © 1995-2022 Graham.Williams@togaware.com Creative Commons Attribution-ShareAlike 4.0