biplot3d: Draw grid in rgl (3D device).

In OpenRepGrid: Tools to analyse repertory grid data

Description

Draw grid in rgl (3D device). The 3D biplot opens an interactive 3D device that can be rotated and zoomed using the mouse. A 3D device facilitates the exploration of grid data as significant proportions of the sum-of-squares are often represented beyond the first two dimensions. Also, in a lot of cases it may be of interest to explore the grid space from a certain angle, e.g. to gain an optimal view onto the set of elements under investigation (e.g. Raeithel, 1998).

Usage

biplot3d(x, dim=1:3, labels.e=TRUE, labels.c=TRUE, lines.c=TRUE,
    lef=1.3, center=1, normalize=0, g=0, h=1,
    col.active=NA, col.passive=NA, c.sphere.col=grey(0.4),
    c.cex=0.6, c.text.col=grey(0.4), e.sphere.col=grey(0),
    e.cex=0.6, e.text.col=grey(0), alpha.sphere=0.05,
    col.sphere="black", unity=FALSE, unity3d=FALSE,
    scale.e=0.9, zoom=1, ...)

Arguments

x	repgrid object.
dim	Dimensions to display.
labels.e	Logical. whether element labels are displayed.
labels.c	Logical. whether construct labels are displayed.
lines.c	Numeric. The way lines are drawn through the construct vectors. 0 = no lines, 1 = lines from constructs to outer frame, 2 = lines from the center to outer frame.
lef	Construct lines extension factor
center	Numeric. The type of centering to be performed. 0= no centering, 1= row mean centering (construct), 2= column mean centering (elements), 3= double-centering (construct and element means), 4= midpoint centering of rows (constructs). Default is 1 (row centering).
normalize	A numeric value indicating along what direction (rows, columns) to normalize by standard deviations. 0 = none, 1= rows, 2 = columns (default is 0).
g	Power of the singular value matrix assigned to the left singular vectors, i.e. the constructs.
h	Power of the singular value matrix assigned to the right singular vectors, i.e. the elements.
col.active	Columns (elements) that are no supplementary points, i.e. they are used in the SVD to find principal components. default is to use all elements.
col.passive	Columns (elements) that are supplementary points, i.e. they are NOT used in the SVD but projecte into the component space afterwards. They do not determine the solution. Default is NA, i.e. no elements are set supplementary.
c.sphere.col	Color of construct spheres.
c.cex	Size of construct text.
c.text.col	Color for construct text.
e.sphere.col	Color of elements.
e.cex	Size of element labels.
e.text.col	Color of element labels.
alpha.sphere	Numeric. alpha blending of the sourrounding sphere (default".05").
col.sphere	Color of sourrouding sphere (default"black").
unity	Scale elements and constructs coordinates to unit scale (maximum of 1) so they are printed more neatly (default TRUE).
unity3d	To come.
scale.e	Scaling factor for element vectors. Will cause element points to move a bit more to the center (but only if unity or unity3d is TRUE). This argument is for visual appeal only.
zoom	Not yet used. Scaling factor for all vectors. Can be used to zoom the plot in and out (default 1).
...	Parameters to be passed on.

Author(s)

Mark Heckmann

References

Raeithel, A. (1998). Kooperative Modellproduktion von Professionellen und Klienten - erlauetert am Beispiel des Repertory Grid. Selbstorganisation, Kooperation, Zeichenprozess: Arbeiten zu einer kulturwissenschaftlichen, anwendungsbezogenen Psychologie (pp. 209-254). Opladen: Westdeutscher Verlag.

See Also

Unsophisticated biplot: biplotSimple;
2D biplots: biplot2d, biplotEsa2d, biplotSlater2d;
Pseudo 3D biplots: biplotPseudo3d, biplotEsaPseudo3d, biplotSlaterPseudo3d;
Interactive 3D biplots: biplot3d, biplotEsa3d, biplotSlater3d;
Function to set view in 3D: home.

Examples

## Not run: 

biplot3d(boeker)
biplot3d(boeker, unity3d=T)

biplot3d(boeker, e.sphere.col="red",
c.text.col="blue")
biplot3d(boeker, e.cex=1)
biplot3d(boeker, col.sphere="red")

biplot3d(boeker, g=1, h=1)    # INGRID biplot
biplot3d(boeker, g=1, h=1,    # ESA biplot
center=4)

## End(Not run)

OpenRepGrid documentation built on May 2, 2019, 4:54 p.m.