(This article was first published on

String concatenation is a rather basic function - but my particular programming reflexes did not help me figure out how to do this in R. I tried the + and & operator, and even the || operator to no avail. Also tried concat() function... no dice. The answer?**R-Chart**, and kindly contributed to R-bloggers)>

**paste('this string is concatenated', 'to this string')**Not exactly intuitive eh? Even more confusing since R uses a lot of UNIX idioms... and in this case, the paste command (which in UNIX is used to combine files) performs a rather different role. A couple of itmes to note:

- The two strings above are concatenated
*with a space between them!* - Additional strings can be included as arguments:

**paste('a','b','c')**

**If you use a vector for an argument, you can use the***collapse*parameter to achieve the same sort of result:

>

**paste(c('a','b','c'), collapse=' ')**- As always, more information is available through R's help system:

>

**?paste**I found this exercise fascinating - so many things in R just "work" like I hope they will. Many functions take lists, vectors, or whatever is thrown their way and do the "right" thing with them. There is plenty of C like syntax that is familiar - but there are significant differences that just need to be memorized. String concatenation seems to fit into this category.

To

**leave a comment**for the author, please follow the link and comment on his blog:**R-Chart**.R-bloggers.com offers

**daily e-mail updates**about R news and tutorials on topics such as: visualization (ggplot2, Boxplots, maps, animation), programming (RStudio, Sweave, LaTeX, SQL, Eclipse, git, hadoop, Web Scraping) statistics (regression, PCA, time series, trading) and more...