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

s.arrow

Tools for multivariate data analysis. Several methods are provided for the analysis (i.e., ordination) of one-table (e.g., principal component analysis, correspondence analysis), two-table (e.g., coinertia analysis, redundancy analysis), three-table (e.g., RLQ analysis) and K-table (e.g., STATIS, multiple coinertia analysis). The philosophy of the package is described in Dray and Dufour (2007) <doi:10.18637/jss.v022.i04>.

Aurélie Siberchicot

ade4

Analysis of Ecological Data: Exploratory and Euclidean Methods
in Environmental Sciences

Stéphane Dray

Anne-Béatrice Dufour

Jean Thioulouse

Daniel Chessel

Thibaut Jombart

Sandrine Pavoine

Jean R. Lobry

Sébastien Ollier

Daniel Borcard

Pierre Legendre

Stéphanie Bougeard

s.arrow function

Plot of the factorial maps for the projection of a vector basis — s.arrow

<dl>

 <dt>dfxy</dt>
<dd>a data frame containing the two columns for the axes</dd>

 <dt>xax</dt>
<dd>the column number of x in <code>dfxy</code></dd>

 <dt>yax</dt>
<dd>the column number of y in <code>dfxy</code></dd>

 <dt>label</dt>
<dd>a vector of strings of characters for the point labels</dd>

 <dt>clabel</dt>
<dd>if not NULL, a character size for the labels used with par("cex")*<code>clabel</code></dd>

 <dt>pch</dt>
<dd>if <code>cpoint</code> &gt; 0, an integer specifying the symbol or the single character to be used in plotting points</dd>

 <dt>cpoint</dt>
<dd>a character size for plotting the points, used with par("cex")*<code>cpoint</code>. If zero, no points are drawn.</dd>

 <dt>boxes</dt>
<dd>if TRUE, labels are framed</dd>

 <dt>edge</dt>
<dd>a logical value indicating whether the arrows should be plotted</dd>

 <dt>origin</dt>
<dd>the fixed point in the graph space, by default c(0,0) the origin of axes. The arrows begin at <code>cent</code>.</dd>

 <dt>xlim</dt>
<dd>the ranges to be encompassed by the x-axis, if NULL they are computed</dd>

 <dt>ylim</dt>
<dd>the ranges to be encompassed by the y-axis, if NULL they are computed</dd>

 <dt>grid</dt>
<dd>a logical value indicating whether a grid in the background of the plot should be drawn</dd>

 <dt>addaxes</dt>
<dd>a logical value indicating whether the axes should be plotted</dd>

 <dt>cgrid</dt>
<dd>a character size, parameter used with <code>par("cex")*cgrid</code>, to indicate the mesh of the grid</dd>

 <dt>sub</dt>
<dd>a string of characters to be inserted as legend</dd>

 <dt>csub</dt>
<dd>a character size for the legend, used with <code>par("cex")*csub</code></dd>

 <dt>possub</dt>
<dd>a string of characters indicating the legend position ("topleft", "topright", "bottomleft", "bottomright")</dd>

 <dt>pixmap</dt>
<dd>an object 'pixmap' displayed in the map background</dd>

 <dt>contour</dt>
<dd>a data frame with 4 columns to plot the contour of the map : each row gives a segment (x1,y1,x2,y2)</dd>

 <dt>area</dt>
<dd>a data frame of class 'area' to plot a set of surface units in contour</dd>

 <dt>add.plot</dt>
<dd>if TRUE uses the current graphics window</dd>

</dl>

Arguments

Author

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

s.arrow: Plot of the factorial maps for the projection of a vector basis

Description

Usage

Arguments

Value

Examples