____GET THE R CODE [Read more...]

The CoCo Matrix (correlation coefficient matrix) is a script for R that takes a table headed with multiple variables and calculates the correlation coefficients between each of the variables, determines which are statistically significant, and represents them visually in a grid-plot. I created the CoCo Matrix to cross correlate a ... [Read more...]

Does what it says on the tin. DOWNLOAD THE CODE #------------------------------ #-------- INFORMATION --------- #------------------------------ # Plotting points from Hugh # Rallinson's "Using Geochemical # Data" book. Code compiled by # Darren J. Wilkinson, # Grant Inst. Earth Science # The University of Edinburgh # [email protected] #------------------------------ # -------- CONTROLS ---------- y.max = 16 ... [Read more...]

  So the opts() has now been given the boot, and all the cool kids are using theme() to customise their ggplots. If you’re still on an old version of R then theme() will still work, but if you update (which you should) then it’ll stop working and you’... [Read more...]

I have been trawling around for a while now trying to find a simple and understandable way of representing geospatial data in R, whilst retaining the ability to manipulate the visualisation in ggplot. After much searching I came across some articles which got me to a working product only after ... [Read more...]

  R is an incredibly powerful programming tool used by a large community of people who require an easy to use, light weight, FREE, and fundamentally awesome statistics package! I have recently discovered that R can be used by geologists whose IT skills are often pitied by their more computer literate ... [Read more...]