Plot of the factorial maps for the projection of a vector basis

Description

performs the scatter diagrams of the projection of a vector basis.

Usage

```s.arrow(dfxy, xax = 1, yax = 2, label = row.names(dfxy),
clabel = 1, pch = 20, cpoint = 0, boxes = TRUE, 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. `boxes` if TRUE, labels are framed `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 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

Value

The matched call.

Daniel Chessel

Examples

```s.arrow(cbind.data.frame(runif(55,-2,3), runif(55,-3,2)))
```