My question is so basic that I am (almost too) embarrassed to admit that I could not find an answer after an hour's worth of homework. What is the Trellis / Lattice analog for the axis(graphics) function that enables the creation of axes in locations other than the default (i.e., bottom for X axis and right for Y axis) ? For example when plotting mileage against weight (in American units), one might want to also include a second X axis on the top margin (e.g., axis() pos = 3) with fuel mileage in metric units. xyplot(Mileage ? Weight, data = fuel.frame) Thank you, humbly yours, Derek Eder platform i386-pc-mingw32 arch i386 os mingw32 system i386, mingw32 status major 2 minor 4.0 year 2006 month 10 day 03 svn rev 39566 language R version.string R version 2.4.0 (2006-10-03)
Derek N. Eder Gothenburg University VINKLA - Vigilance and Neurocognition laboratory SU/Sahlgrenska Utvecklingslab 1, Med Gr?na str?ket 8 SE 413 45 G?teborg (Gothenburg) Sverige (Sweden) +46 (031)* 342 8261 (28261 inom Sahlgrenska) +46 0704 915 714 (mobile) +46 (031) 25 97 07 (home) * omit the 0 when calling from outside Sweden