classscatter function

Classification scatterplot matrix

Function to plot a scatterplot matrix with a classification result.

classscatter(formula, data, method, col.correct = "black", 
    col.wrong = "red", gs = NULL, ...)

Arguments

• formula: formula of the form groups ~ x1 + x2 + .... That is, the response is the grouping factor and the right hand side specifies the (non-factor) discriminators.
• data: Data frame from which variables specified in formula are preferentially to be taken.
• method: character, name of classification function (e.g. ‘lda’ ).
• col.correct: color to use for correct classified objects.
• col.wrong: color to use for missclassified objects.
• gs: group symbol (plot character), must have the same length as the data. If NULL, as.character(groups) is the default.
• ...: further arguments passed to the underlying classification method or plot functions.

Returns

The actual error rate.

Author(s)

Karsten Luebke, karsten.luebke@fom.de

See Also

plot

Examples

data(B3)
library(MASS)
classscatter(PHASEN ~ BSP91JW + EWAJW + LSTKJW, 
    data = B3, method = "lda")