candisc: vectors – R documentation

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vectors

Draw Labeled Vectors in 2D or 3D

Description

Graphics utility functions to draw vectors from an origin to a collection of points (using arrows in 2D or lines3d in 3D) with labels for each (using text or texts3d).

Usage

vectors(x, origin = c(0, 0), labels = rownames(x), 
    scale = 1, 
    col="blue",
    lwd=1, cex=1,
    length=.1, angle=13, pos=NULL,	
    ...)

vectors3d(x, origin=c(0,0,0), labels=rownames(x), 
    scale=1, 
    col="blue", 
    lwd=1, cex=1,
    ...)

Arguments

`x`	A two-column matrix or a three-column matrix containing the end points of the vectors
`origin`	Starting point(s) for the vectors
`labels`	Labels for the vectors
`scale`	A multiplier for the length of each vector
`col`	color(s) for the vectors.
`lwd`	line width(s) for the vectors.
`cex`	color(s) for the vectors.
`length`	For `vectors`, length of the edges of the arrow head (in inches).
`angle`	For `vectors`, angle from the shaft of the arrow to the edge of the arrow head.
`pos`	For `vectors`, position of the text label relative to the vector head. If `pos==NULL`, labels are positioned labels outside, relative to arrow ends.
`...`	other graphical parameters, such as `lty`, `xpd`, ...

Details

The graphical parameters col, lty and lwd can be vectors of length greater than one and will be recycled if necessary

Value

None

Author(s)

Michael Friendly

Examples

plot(c(-3, 3), c(-3,3), type="n")
X <- matrix(rnorm(10), ncol=2)
rownames(X) <- LETTERS[1:5]
vectors(X, scale=2, col=palette())

candisc

Visualizing Generalized Canonical Discriminant and Canonical Correlation Analysis

v0.8-5

GPL (>= 2)

Authors

Michael Friendly [aut, cre], John Fox [aut]

Initial release

2021-01-21