# s.match: Plot of Paired Coordinates In ade4: Analysis of Ecological Data: Exploratory and Euclidean Methods in Environmental Sciences

 s.match R Documentation

## Plot of Paired Coordinates

### Description

performs the scatter diagram for a paired coordinates.

### Usage

```s.match(df1xy, df2xy, xax = 1, yax = 2, pch = 20, cpoint = 1,
label = row.names(df1xy), clabel=1, edge = TRUE, xlim = NULL,
ylim = NULL, grid = TRUE, addaxes = TRUE, cgrid = 1,
include.origin = TRUE, origin = c(0,0), sub = "", csub = 1.25,
possub = "bottomleft", pixmap = NULL, contour = NULL, area = NULL,
```

### Arguments

 `df1xy` a data frame containing two columns from the first system `df2xy` a data frame containing two columns from teh second system `xax` the column number for the x-axis of both the two systems `yax` the column number for the y-axis of both the two systems `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 `label` a vector of strings of characters for the couple labels `clabel` if not NULL, a character size for the labels, used with `par("cex")*clabel` `edge` If TRUE the arrows are plotted, otherwise only the segments are drawn `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 `include.origin` a logical value indicating whether the point "origin" should be belonged to the graph space `origin` the fixed point in the graph space, for example c(0,0) the origin axes `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 sub-title position ("topleft", "topright", "bottomleft", "bottomright") `pixmap` aan 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

```if(!adegraphicsLoaded()) {
X <- data.frame(x = runif(50, -1, 2), y = runif(50, -1, 2))
Y <- X + rnorm(100, sd = 0.3)
par(mfrow = c(2, 2))
s.match(X, Y)
s.match(X, Y, edge = FALSE, clab = 0)
s.match(X, Y, edge = FALSE, clab = 0)
s.label(X, clab = 1, add.plot = TRUE)
s.label(Y, clab = 0.75, add.plot = TRUE)
s.match(Y, X, clab = 0)
par(mfrow = c(1, 1))
}```

ade4 documentation built on Nov. 2, 2022, 1:07 a.m.