search_geodesic: Search for most interesting projection along random...

In nspyrison/tourr: Implement Tour Methods in R Code

Description

This is a novel method for finding more interesting projections for the guided tour. It works by first taking a small step in n random directions, and then picking the direction that looks most promising (based on the height of the index function). Once the best direction is found, it performs a linear search along the geodesic in that direction, traveling up to half way around the sphere.

Usage

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

Arguments

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

Details

You should not to have call this function directly, but should supply it to the guided_tour as a search strategy.

nspyrison/tourr documentation built on Aug. 29, 2019, 2:56 a.m.