R tips

This will be a repository of tips for using R. To add a tip, just create a link below, for example: Separating the Red Sea and save the page. The link will be red. Just click on the red link and you will automatically be editing the page. Nothing like a blank canvas to share your hard-gleaned wisdom!

Contents 1 QERM wiki pages about R 1.1 General 1.2 Plots 1.3 Numerical analysis 1.4 Other 2 Useful External Links

QERM wiki pages about R

General

• Editors that make writing R code easier
• Testing functions in R

Plots

• General Information on Plotting
• Colors
• Making Inset Maps
• Ocean Colors: Obtaining and presenting satellite based chlorophyll concentrations maps
• Bathymetry data: like Ocean Colors, but for depth, and not as sophisticated yet
• Polygons from images sourced outside R
• Perspective Plots
• Contour Plots

Numerical analysis

• Optimizers
• Making a Correlated Random Walk

Other

• Interactive Debugging in R
• String Manipulation
• Sometimes R users need to encounter C, for example, to maintain an R package, or to speed up existing functions. It is fairly straightforward to run C code from within R. Here is how, with some easy-to-follow examples.

Useful External Links

• R Users Wiki, with information of relevance to all levels of experience.
• A useful pdf cheat-sheet
• The NCEAS R Programming Resource Center
• R Graph Gallery - with lots and lots of sample plots and code.
• RSeek - the R-Google, or Roogle, or gRoogle, or something.