Lattice Graphics Package
- Aug 13, 2014 · 6:00 PM
Lattice is one of the CRAN project’s recommended packages, and among the earliest packages to be developed. It is also a graphics package which allows users to produce sophisticated displays of data with very simple commands. Come along to hear a little of Lattice’s origins, take a tour of its capabilities and learn how to use some its more advanced functions.
Speaker: Robert de Graaf
Robert de Graaf is an engineer who became interested in Statistics when he underwent Six Sigma training while working for a manufacturing business in Melbourne’s west, and went on to complete a Master of Scientific Studies in Statistics. More recently he has left manufacturing to join RightShip as a Risk Modeler.
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Robert de G.
August 14, 2014
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Answers to some questions posed last night:
Question 1: Can you include numeric scale on Lattice trivariate functions (and how)?
Answer – Yes, you use the the scale argument, which must be included as a list.
Hence, given you have your surface dataframe pre-prepared:
wireframe(z~x*y, data=your.surface.data, scales=list(z=list(arrows=FALSE, distance =1)))
(distance positions the z-axis text label. You can also include a rot argument - e.g. rot=90, to choose text label orientation)
Question 2: Can you use the print() function to arrange graphics objects produced from multiple R graphics packages?
So far as I can tell, the answer is a qualified ‘yes’, where the qualification is that you need to be working with a graphics package which produces a storeable graphics object – lattice obviously does, and it looks like ggplot2 does also. Another package I selected at random, vcd appears not to, however.