Plot of the factorial maps with polygons of contour by level of a factor
performs the scatter diagrams with polygons of contour by level of a factor.
s.chull(dfxy, fac, xax = 1, yax = 2,
optchull = c(0.25, 0.5, 0.75, 1), label = levels(fac), clabel = 1,
cpoint = 0, col = rep(1, length(levels(fac))), xlim = NULL, ylim = NULL,
grid = TRUE, addaxes = TRUE, origin = c(0,0), include.origin = TRUE,
sub = "", csub = 1, possub = "bottomleft", cgrid = 1, pixmap = NULL,
contour = NULL, area = NULL, add.plot = FALSE)dfxy |
a data frame containing the two columns for the axes |
fac |
a factor partioning the rows of the data frame in classes |
xax |
the column number of x in |
yax |
the column number of y in |
optchull |
the number of convex hulls and their interval |
label |
a vector of strings of characters for the point labels |
clabel |
if not NULL, a character size for the labels, used with |
cpoint |
a character size for plotting the points, used with |
col |
a vector of colors used to draw each class in a different color |
xlim |
the ranges to be encompassed by the x axis, if NULL, they are computed |
ylim |
the ranges to be encompassed by the y axis, if NULL they are computed |
grid |
a logical value indicating whether a grid in the background of the plot should be drawn |
addaxes |
a logical value indicating whether the axes should be plotted |
origin |
the fixed point in the graph space, for example c(0,0) the origin axes |
include.origin |
a logical value indicating whether the point "origin" should be belonged to the graph space |
sub |
a string of characters to be inserted as legend |
csub |
a character size for the legend, used with |
possub |
a string of characters indicating the sub-title position ("topleft", "topright", "bottomleft", "bottomright") |
cgrid |
a character size, parameter used with par("cex")* |
pixmap |
an object 'pixmap' displayed in the map background |
contour |
a data frame with 4 columns to plot the contour of the map : each row gives a segment (x1,y1,x2,y2) |
area |
a data frame of class 'area' to plot a set of surface units in contour |
add.plot |
if TRUE uses the current graphics window |
The matched call.
Daniel Chessel
xy <- cbind.data.frame(x = runif(200,-1,1), y = runif(200,-1,1))
posi <- factor(xy$x > 0) : factor(xy$y > 0)
coul <- c("black", "red", "green", "blue")
if(adegraphicsLoaded()) {
s.class(xy, posi, ppoi.cex = 1.5, chullSize = c(0.25, 0.5, 0.75, 1), ellipseSize = 0,
starSize = 0, ppoly = list(col = "white", border = coul))
} else {
s.chull(xy, posi, cpoi = 1.5, col = coul)
}Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.