Animated 3D Plot of Ammonia Toxics Criteria
[This article was first published on AdventuresInData, 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.
In 2013, EPA published final national recommended water quality criteria for the protection of aquatic life from the toxic effects of ammonia in freshwater.Want to share your content on R-bloggers? click here if you have a blog, or here if you don't.
http://www.epa.gov/wqc/aquatic-life-criteria-ammonia
These criteria are a function of water temperature and pH, so that the criteria concentration value changes with changing pH and temperature. Frequently the criteria values are plotted as a slice with one of the two variables held constant. But I wanted to see what the total criteria space looked like. One way to do this is with a 3D plot with the independent temperature and pH variables on the x and y axes (the horizontal plane) and the dependent Ammonia concentration on the z axis (vertical). Since shape of the surface is difficult to see from any one perspective, animation helps show the overall shape.
This plot was developed in R using plot3D and animation libraries.
To leave a comment for the author, please follow the link and comment on their blog: AdventuresInData.
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.