# orbital: Data : Normal Vectors to the Orbital Planes of the 9 Planets In Riemann: Learning with Data on Riemannian Manifolds

## Description

The 9 planets in our solar system are evolving the sun via their own orbits. This data provides normal vector of the orbital planes. Normal vectors are unit-norm vectors, so that they are thought to reside on 2-dimensional sphere.

## Usage

 1 data(orbital) 

## Format

an (9\times 3) matrix where each row is a normal vector for a planet.

wrap.sphere
 1 2 3 4 5 6 7 8 9 ## LOAD THE DATA AND WRAP AS RIEMOBJ data(orbital) myorb = wrap.sphere(orbital) ## VISUALIZE mds2d = riem.mds(myorb)\$embed opar <- par(no.readonly=TRUE) plot(mds2d, main="9 Planets", pch=19, xlab="x", ylab="y") par(opar)