starcoord: The star coordinates plot

In dprep: Data Pre-Processing and Visualization Functions for Classification

Description

This function displays a star coordinates plot introduced by Kondogan (2001).

Usage

starcoord(data, main = NULL, class = FALSE, outliers=NULL, vars = 0, 
scale = 1, cex = 0.8, lwd = 0.25, lty = par("lty"))

Arguments

data	The dataset
main	The title of the plot
class	This logical variable is TRUE for supervised data and FALSE for unsupervised data
outliers	The instances to be highlighted as potential outliers
vars	The variables to be scaled
scale	The scale factor
cex	A numerical value giving the amount by which plotting text and symbols should be scaled.
lwd	The width of the lines representing the axis
lty	The type of the lines representing the axis

Details

This plot is not recommended for a large number of features (say more than 50).

Value

Returns a Star Coordinates Plot of the data matrix

Author(s)

Edgar Acuna and Shiyun Wen

References

E. Kandogan (2001). Visualizing multidimensional clusters, Trends, and Outliers, using star coordinates. Proceedings of KDD 2001.

See Also

parallelplot, surveyplot

Examples

data(vehicle)
starcoord(vehicle, main="Vehicle Dataset", class=TRUE, outliers=NULL,vars=0, scale=1,
cex=0.8, lwd = 0.25, lty = par("lty"))

Example output

Warning messages:
1: In rgl.init(initValue, onlyNULL) : RGL: unable to open X11 display
2: 'rgl_init' failed, running with rgl.useNULL = TRUE 
3: .onUnload failed in unloadNamespace() for 'rgl', details:
  call: fun(...)
  error: object 'rgl_quit' not found 

dprep documentation built on May 29, 2017, 11:01 a.m.