adeg.panel.values {adegraphics}  R Documentation 
Panel function for drawing coordinates with variable representation. The values can be represented through symbols with proportional size or various colors.
adeg.panel.values(x, y, z, method, symbol, ppoints, breaks, centerpar = NULL, center = 0)
x 
a numeric vector, xcoordinates for the symbols 
y 
a numeric vector, ycoordinates for the symbols 
z 
a numeric vector, the third variable with one value per coordinates (x, y) 
method 
a character string equal to 
symbol 
a character string equal to 
ppoints 
a list of parameters as an extract of

breaks 
a vector, the breaks used for splitting 
centerpar 
a list to represent center value using elements in the 
center 
a center value for method 
Draws the points.
For more information about the use of panel functions, please see the lattice
package developed by Deepayan Sarkar.
For the symbols size, the method is size
uses perceptual scaling (Tanimura et al. 2006).
Alice JulienLaferriere, Aurelie Siberchicot aurelie.siberchicot@univlyon1.fr and Stephane Dray
Tanimura, S. and Kuroiwa, C. and Mizota, T. 2006 Proportional symbol mapping in R Journal of Statistical Software 15, 1–7
if(require(lattice, quietly = TRUE)) { param < adegpar("ppoints")[[1]] param$col < adegpar("ppalette")[[1L]]$quanti(2) z < rnorm(10) xyplot(1:10 ~ 1:10, panel = function(x, y, ...){ adeg.panel.values(x, y, z, method = "size", symbol = "square", ppoints = param, breaks = pretty(z, 4))}) } if(require(lattice, quietly = TRUE)) { param$col < adegpar()$ppalette$quali((length(pretty(z, 2))  1)) xyplot(1:10 ~ 1:10, panel = function(x, y, ...){ adeg.panel.values(x, y, z, method = "color", symbol = "circle", ppoints = param, breaks = pretty(z, 2))}) }