homals (version 1.0-0)

plot.homals: Plot methods for homals

Description

These methods provide various 2D and 3D plots for objects of class "homals".

Usage

## S3 method for class 'homals':
plot(x, plot.dim = c(1, 2), plot.type = "jointplot", var.subset, main, type, xlab, ylab, xlim, ylim, 
leg.pos = "topright", identify = TRUE, ...)

## S3 method for class 'homals':
plot3d(x, plot.dim = c(1, 2, 3), plot.type = "jointplot", var.subset, type, xlab, ylab, 
zlab, col, main, sphere = TRUE, bgpng = "particle.png", ax.grid = TRUE, ...)

## S3 method for class 'homals':
plot3dstatic(x, plot.dim = c(1, 2, 3), plot.type = "jointplot", var.subset, main, type, 
xlab, ylab, zlab, xlim, ylim, zlim, ...)

Arguments

x

Object of class "homals"

plot.dim

Vector with dimensions to be plotted against.

plot.type

String indicating which type of plot to be produced: "jointplot", "catplot" "labplot", "objplot", "starplot", "graphplot", "hullplot", "lossplot"

var.subset

Numeric vector for subsetting variables to be plotted. If missing, all variables are taken into account. Ignored for non separate variable plots.

main

Plot title.

type

Type of points/lines to be plotted.

xlab

Label of x-axis.

ylab

Label of y-axis.

zlab

Label of z-axis.

col

Plotting color.

xlim

Limits for x-axis.

ylim

Limits for y-axis.

zlim

Limits for z-axis.

leg.pos

Position of the legend (for "trfplot" and "spanplot" only) as provided in legend.

identify

If TRUE, interactive plots are provided.

sphere

Whether 3D-sphere should be drawn.

bgpng

Background image in /library/rgl/textures/. If NULL, blank background.

ax.grid

If TRUE grid is drawn.

...

Further plot arguments passed: see plot, plot3d in package rgl, and scatterplot3

Details

Plot description: - Object plot (plot.type = "objplot"): Plots the scores of the objects (rows in data set) on two or three dimensions. - Category plot (plot.type = "catplot"): Plots the rank-restricted category quantifications for each variable separately. Three-dimensional plot is available. - Voronoi plot (plot.type = "vorplot"): Produces a category plot with Voronoi regions. - Joint plot (plot.type = "jointplot"): Plots the object scores and the category quantifications in 1 device. Three-dimensional version is available. - Graph plot (plot.type = "graphplot"): Joint plot with connections between scores/quantifications. - Hull plot (plot.type = "hullplot"): For each single variable the object scores are mapped onto two dimensions and the convex hull for each response category is drawn. - Label plot (plot.type = "labplot"): Similar to object plot, the object scores are plotted but for each variable separately with the corresponding category labels. A three-dimensional version is provided. - Span plot (plot.type = "spanplot"): As label plot, it maps the object scores for each variable and span plot connects them by the shortest path within each response category. - Star plot (plot.type = "starplot"): Again, the object scores are mapped. In addition these points are connected with the category centroid. Three-dimensional version is provided. - Loss plot (plot.type = "lossplot"): Plots the rank-restricted category quantifications against the unrestricted for each variable separately. - Projection plot (plot.type = "prjplot"): For variables of rank 1 the object scores (two-dimensional) are projected onto a straight line determined by the rank restricted category quantifications. - Vector plot (plot.type = "vecplot"): For variable of rank 1 the object scores (two-dimensional) are projected onto a straight line determined by the rank restricted category quantifications. - Transformation plot (plot.type = "trfplot"): Plots the original (categorical) scale against the transformed (metric) scale on each dimension over the categories of each variable separately. - Loadings plot (plot.type = "loadplot"): Plots the loadings of the variables and connects them with the origin. Three-dimensional version is available. - Scree plot (plot.type = "screeplot"): Produces a scree plot based on the eigenvalues. - Discrimination measures (plot.type = "dmplot"): Plots the discrimination measures for each variable.

See Also

homals

Examples

##Graphplot for Hartigan solution: 3 dimensions extracted, dimension 1 plotted
##against dimension 3.
data(hartigan)
res <- homals(hartigan, ndim = 3)
plot(res, plot.dim = c(1,3), plot.type = "graphplot")

##3D star plot for indentation and bottom
plot3d(res, plot.type = "starplot", var.subset = c(2,4))

##Static 3D joint plot for thread and bottom
plot3dstatic(res, plot.type = "jointplot", var.subset = c(1,4))