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, pts = FALSE, nc = TRUE,
                 percent = 95, clabel = 1, side = c("top", "bottom", "none"),
                 Adensity, Udensity, Aangle, Uangle, Aborder, Uborder,
                 Acol, Ucol, Alty, Ulty, Abg, Ubg, Ainch, Uinch, ...)

### Arguments

`x` | an object of class `enfa`
`xax` | the column number for the x-axis
`yax` | the column number for the y-axis
`pts` | logical. Whether the points should be drawn. If `FALSE`, minimum convex polygons are displayed
`nc` | whether or not the niche center should be displayed
`percent` | 100 minus the proportion of outliers to be excluded from the computation of the minimum convex polygons
`clabel` | a character size for the columns
`side` | if `"top"`, the legend of the kept axis is upside, if `"bottom"` it is downside, if `"none"` no legend
`Adensity` | the density of shading lines, in lines per inch, for the available pixels polygon. See `polygon` for more details
`Udensity` | the density of shading lines, in lines per inch, for the used pixels polygon. See `polygon` for more details
`Aangle` | the slope of shading lines, given as an angle in degrees (counter-clockwise), for the available pixels polygon
`Uangle` | the slope of shading lines, given as an angle in degrees (counter-clockwise), for the used pixels polygon
`Aborder` | the color to draw the border of the available pixels polygon. See `polygon` for more details
`Uborder` | the color to draw the border of the used pixels polygon. See `polygon` for more details
`Acol` | the color for filling the available pixels polygon. if `pts==FALSE`, the color for the points corresponding to available pixels
`Ucol` | the color for filling the used pixels polygon. if `pts==FALSE`, the color for the points corresponding to used pixels
`Alty` | the line type for the available pixels polygon, as in `par`.
`Ulty` | the line type for the used pixels polygon, as in `par`.
`Abg` | if `pts==TRUE`, background color for open plot symbols of available pixels
`Ubg` | if `pts==TRUE`, background color for open plot symbols of used pixels
`Ainch` | if `pts==TRUE`, heigth in inches of the available pixels
`Uinch` | if `pts==TRUE`, heigth in inches of the largest used pixels
`...` | 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.

### Author(s)

Mathieu Basille basille@biomserv.univ-lyon1.fr

### See Also

`enfa`, `scatter`

### Examples

    ## Not run:
    ## Not run:
    data(lynxjura)

    map <- lynxjura$map

    ## We keep only "wild" indices.
    tmp <- lynxjura$locs[,4]!="D"
    locs <- lynxjura$locs[tmp, c("X","Y")]

    ## We perform a square root transformation
    ## of the variable to normalize it
    map[,4] <- sqrt(map[,4])

    ## We perform the ENFA
    (enfa1 <- enfa(map, locs[tmp, c("X","Y")],
                    scannf = FALSE))
    scatter(enfa1)
    ## End(Not run)

[Package adehabitat version 1.3 Index]