pca.biplot3d: pca.biplot3d

In StefaanVerwimp/Biplot: A customizable correlational biplot function

Description

An interactive 3D biplot. PC's are scaled to unit variance.

Usage

pca.biplot3d(
  data,
  center = TRUE,
  scale = FALSE,
  pcx = 1,
  pcy = 2,
  pcz = 3,
  col = "black",
  groups = NULL,
  bg = "white",
  type = "sphere",
  r = 0.05,
  aspect3d = c(1, 1, 1),
  abbrev = FALSE,
  arrow.col = "black",
  label.col = "darkblue",
  label.cex = 1,
  simple.axis = FALSE,
  box = FALSE,
  grid = FALSE,
  ellipse = FALSE,
  ellipse.conf = 0.68,
  ellipse.alpha = 0.2,
  ellipse.shade = TRUE,
  ellipse.wire = FALSE,
  ...
)

Arguments

data	The data used to build the biplot
center	Column centering the data (default = TRUE). If center is TRUE then centering is done by subtracting the column means (omitting NA's) of x from their corresponding columns, and if center is FALSE, no centering is done.
scale	Scaling the data (default = FALSE). If scale is TRUE then scaling is done by dividing the (centered) columns of x by their standard deviations if center is TRUE, and the root mean square otherwise. If scale is FALSE, no scaling is done.
pcx	Which principal component to plot on the X-axis (default = 1)
pcy	Which principal component to plot on the Y-axis (default = 2)
pcz	Which principal component to plot on the Z-axis (default = 3)
col	Defines color of the observations, only if no group is defined
groups	A vector from which the unique values are used to color the observations
bg	Background color
type	Type of plot / Presentation of observations. Options: "sphere", "point", "text" (default = "sphere")
r	Vector or single value defining the sphere radius/radii
aspect3d	Vector used to set apparent ratios of the x, y, and z axes of the current bounding box
abbrev	Whether to abbreviate the variable names
arrow.col	Color of the variable arrow
label.col	Color of the variable label
label.cex	Size of the variable label
simple.axis	Uses axes3d instead of decorate3d if TRUE
box	Whether to draw a box (only if using decorate3d)
grid	Adds a reference grid if TRUE
ellipse	Whether to add confidence ellipses to groups (to display this on the plot, either ellipse.shade, ellipse.wire, or both must be TRUE)
ellipse.conf	Confidence limit for ellipses
ellipse.alpha	Alpha transparency value for the ellipse (0 = transparent, 1 = opaque)
ellipse.shade	Draws ellipse as a surface
ellipse.wire	Draws ellipse as line segments
...	Material properties (seematerial).

Examples

     data(iris)
     pca.biplot3d(iris[,-5], scale = T)
     pca.biplot3d(iris[,-5], groups = iris$Species, scale = T, box = T, grid = T, ellipse = T)

StefaanVerwimp/Biplot documentation built on Feb. 10, 2021, 9:37 a.m.