geodesic: Functions for geodesic search
In cepp: Context Driven Exploratory Projection Pursuit

Description Usage Arguments Details Value Author(s)

This function provides an alternative way to optimize the projection index, by moving along a geodesic path.

1	search_geodesic(current, alpha = 1, index, max.tries = 5, n = 5)

`current`	The starting projection.
`alpha`	Maximum distance to travel (currently ignored).
`index`	The projection index.
`max.tries`	Maximum number of failed attempts before giving up.
`n`	Number of random steps to take to find best direction.

The function search_geodesic finds only one basis at a time. The caller is a wrapper function that calls search_geodesic bases number of times.

Returns the basis found.

The function has been copied as is from the tourr package.

cepp documentation built on May 2, 2019, 3:44 p.m.