The mars2mull package contains example XRPD data required for the Digital soil mineralogy with R course. The data consist of 703 diffractograms from a 20 km grid across Scotland, and 31 diffractograms from the NASA’s Mars Science Laboratory (MSL) onboard the Curiosity Rover.

The Mars Science Laboratory data were downloaded from the Geosciences Data Volume on 14.07.21.

The mars2mull package can be installed from GitHub using the devtools package:

#Install devtools if you don't already have it on your machine
install.packages("devtools")

#Use the install_github function to install the package
devtools::install_github('benmbutler/mars2mull')

The four datasets included within the package are:

1. scotland_xrpd: 703 diffractograms of Scottish soils sampled during the second National Soil Inventory of Scotland.
2. scotland_locations: The locations of the 703 Scottish soil diffractograms.
3. mars_xrpd: 31 diffractograms of scooped and drilled samples from the MSL.
4. mars_id: The names and unique IDs of the MSL data along with the sample type and the sampling day (a Martian sol).

The data can be loaded into R using:

data("scotland_xrpd")
data("scotland_locations")
data("mars_xrpd")
data("mars_id")