maximin.remove: Sequentially remove design points from a design while maintaining low reciprocal distance criterion as possible
Description
This function sequentially removes design points one-at-a-time from a design while maintaining low reciprocal distance criterion as possible.
Usage
maximin.remove(D, n.remove, r = 2 * p)
Value
the updated design.
Arguments
D
the design matrix.
n.remove
number of design points to remove.
r
the power parameter in the maximin.crit. By default it is set as 2p.
Details
maximin.remove sequentially removes design points from a design in a greedy way while maintaining low reciprocal distance criterion (see maximin.crit) as possible. In each iteration, the design point with the largest sum of reciprocal distances with the other design points is removed, that is, \(k^* = \arg\max_k \sum_{i\neq k}\frac{1}{\|\bm x_k - \bm x_i\|^r}\).