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VBmix (version 0.3.2)

displayScatter:

Description

general plotting function for data sets (matrix of row-elements), optionally associated to labels and a GMM. Labels influence the color and symbols of plotted data points. Gaussian envelopes of the components in the GMM are drawn. NB: data set and GMM arguments cannot be both NULL.

Usage

displayScatter(data = NULL, model = NULL, labels = NULL, datasizes = NULL, 
compcolors = NULL, complabels = NULL, compstrokes = "solid", space = 1:2, 
xlim = NULL, ylim = NULL, main = "", xlab = "", ylab = "", smooth = FALSE, 
alphacol = 0.8, alphanocol = 0.5, cex.lab = 1, lwd = 1)

Arguments

data
matrix of row-elements. If NULL, the GMM is plotted alone.
model
GMM object.
labels
vector of numeric labels. May alternatively be present as a member of model, labels.
datasizes
vector of integer magnification factors for data symbols. If length=1, same coefficient applies to all points.
compcolors
vector of integer color indexes. These indexes are internally associated to one color among a set of appropriately chosen ones. If length=1, all GMM components are colored the same way. If length=k, each component is associated to its own color index. This k-length vector may contain NA values: associated components will be white-colored.
complabels
character vector containing text strings to be printed over Gaussian envelopes.
compstrokes
this character vector may be used to specify non default strokes for envelopes.
space
this function prints a 2D scatterplot. If data and model have higher dimensionality, this argument specifies the axes to be printed.
xlim
bounds for the first variable. If NULL, will be inferred from available data.
ylim
bounds for the second variable. If NULL, will be inferred from available data.
main
main label for the plotting window.
xlab
label for the x-axis.
ylab
label for the y-axis.
smooth
if TRUE, display the response to a kernel density function, instead of symbols for data elements.
alphacol
alpha blending parameter when a component is non-white colored.
alphanocol
alpha blending parameter when a component is white colored.
cex.lab
magnification factor for all text in the plotting window.
lwd
width of the stroke used for data symbols.

Value

a new plotting window displaying the data set and associated model.

See Also

plotGmm

Examples

Run this code
displayScatter(irisdata, NULL, irislabels)

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