Draw the eigenstructure analysis (ESA) biplot 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).
Note that the eigenstructure analysisis just a special case
of a biplot that can also be produced using the
biplot3d function with the arguments
center=4, g=1, h=1.
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).
Power of the singular value matrix assigned to the left singular vectors, i.e. the constructs.
Power of the singular value matrix assigned to the right singular vectors, i.e. the elements.
Additional arguments to be passed to
Pseudo 3D biplots:
Interactive 3D biplots:
Function to set view in 3D:
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