# New Geometry – Confidence Regions

[This article was first published on

Want to share your content on R-bloggers? click here if you have a blog, or here if you don't.

**ggtern: ternary diagrams in R**, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here)Want to share your content on R-bloggers? click here if you have a blog, or here if you don't.

# geom_confidence(…)

One of the first suggestions that was presented to me, was by Sean Mulcahy, whom suggested that it would be a good idea to consider confidence regions, as presented HERE. I am plesed to say that a new geometry (`geom_confidence`

) has been created, and, is available since version 1.0.1.1, continue reading for a couple of examples.

## Basic Case

Here is an ‘out of the box’ example, using Sean’s Feldspar data, for the default 50%, 90% and 95% confidence intervals:

**Code for the above:**

data(Feldspar) ggtern(data = Feldspar, aes(An, Ab, Or)) + geom_confidence() + geom_point() + labs(title = 'Feldspar - Elkins and Grove 1990 + Confidence Levels')

The post New Geometry – Confidence Regions appeared first on ggtern: ternary diagrams in R.

To

**leave a comment**for the author, please follow the link and comment on their blog:**ggtern: ternary diagrams in R**.R-bloggers.com offers

**daily e-mail updates**about R news and tutorials about learning R and many other topics. Click here if you're looking to post or find an R/data-science job.

Want to share your content on R-bloggers? click here if you have a blog, or here if you don't.