Usage
s.arrow(dfxy, xax = 1, yax = 2, label = row.names(dfxy),
clabel = 1, pch = 20, cpoint = 0, edge = TRUE, origin = c(0,0),
xlim = NULL, ylim = NULL, grid = TRUE, addaxes = TRUE, cgrid = 1,
sub = "", csub = 1.25, possub = "bottomleft", pixmap = NULL,
contour = NULL, area = NULL, add.plot = FALSE)Arguments
dfxy
a data frame containing the two columns for the axes
xax
the column number of x in dfxy
yax
the column number of y in dfxy
label
a vector of strings of characters for the point labels
clabel
if not NULL, a character size for the labels used with par("cex")*clabel
pch
if cpoint > 0, an integer specifying the symbol or the single character to be used in plotting points
cpoint
a character size for plotting the points, used with par("cex")*cpoint. If zero, no points are drawn.
edge
a logical value indicating whether the arrows should be plotted
origin
the fixed point in the graph space, by default c(0,0) the origin of axes. The arrows begin at cent.
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
cgrid
a character size, parameter used with par("cex")*cgrid, to indicate the mesh of the grid
sub
a string of characters to be inserted as legend
csub
a character size for the legend, used with par("cex")*csub
possub
a string of characters indicating the legend position ("topleft","topright","bottomleft","bottomright")
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 line (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