Chapter 2 Getting Set Up

We need the following packages installed, using remotes is the best way to install as it will not re-install any package if it’s already up to date.

## make sure we have the packages we need
if (!requireNamespace("remotes", quietly = TRUE)) {
  install.packages("remotes")
}
req1 <- c("ggplot2", "maps", "maptools", "raster", "sp", "dplyr", "rgdal")
remotes::install_cran(req1)

2.1 Data sets

Obtain some extra data sets that will be used in this session.

if (!file.exists("polar-mapping.Rdata")) {
 download.file("https://github.com/mdsumner/polar-mapping-oghub/raw/master/data-raw/polar-mapping.Rdata", 
               
               "polar-mapping.Rdata", mode = "wb")
}
load("polar-mapping.Rdata")

2.2 Alternative 1

If you have problems and can’t get R set up as above, try this Binder badge - just click it and you should get a ready-to-go Rstudio session where the code already works.

(It shouldn’t take more than a few minutes to launch, but note that a session will only last for 12 hours or so and you will need to keep active with the session, it will time out after 10min or so).

2.3 Alternative 2

If you get really stuck, try https://rstudio.cloud/

There you should be able to run the code above with no problem.