scatter.enfa {adehabitat}R Documentation

Scatter Plot of the Results of the ENFA

Description

Performs the scatter diagrams of objects of class enfa.

Usage

scatter.enfa(x, xax = 1, yax = 2, h, pts = FALSE,
             ncont = 1, clabel = 1, colZ = "blue",
             colS = "orange", lwdZ = 2, lwdS = 3,
             side = c("top", "bottom", "none"),
             csub = 1, ...)

Arguments

x an object of class enfa
xax the column number for the x-axis
yax the column number for the y-axis
h vector of bandwidths for x and y directions, used in the function kde2d of the package MASS. Defaults to normal reference bandwidth (see ?kde2d)
pts logical. Whether the points should be drawn. If FALSE, contours of kernel densities estimates are displayed
ncont if pts == FALSE, an integer indicating the number of contour levels desired for the kernel densities estimates. By default, only the external one is displayed
clabel a character size for the columns
colZ color for the kernel density estimates of the available pixels
colS color for the kernel density estimates of the used pixels
lwdZ if pts==FALSE, the line width for the kernel density estimates of the available pixels
lwdS if pts==FALSE, the line width for the kernel density estimates of the used pixels
side if "top", the legend of the kept axis is upside, if "bottom" it is downside, if "none" no legend
csub a character size for the legend
... further arguments passed to or from other methods

Details

scatter.enfa displays a factorial map of pixels, as well as the projection of the vectors of the canonical basis multiplied by a constant of rescaling. The kept axes for the plot are specified in a corner.

Warning

  biv.test uses the function kde2d of the package MASS.

Author(s)

Mathieu Basille basille@biomserv.univ-lyon1.fr

See Also

enfa, scatter

Examples

## Not run: 
data("lynxjura")

## We keep only "wild" indices.
tmp=lynxjura$loc[,4]!="D"

if (require(MASS))
    scatter(enfa(lynxjura$map, lynxjura$locs[tmp, c("X", "Y")],
            scannf=FALSE, nf=3))
## End(Not run)

[Package Contents]