LS function

Neighborhood functions for Seriation Method SA

Definition of different local neighborhood functions for the method "SA" for seriate().

LS_swap(o, pos = sample.int(length(o), 2))

LS_insert(o, pos = sample.int(length(o), 2))

LS_reverse(o, pos = sample.int(length(o), 2))

LS_mixed(o, pos = sample.int(length(o), 2))

Arguments

• o: an integer vector with the order
• pos: random positions used for the local move.

Returns

returns the new order vector representing the random neighbor.

Details

Local neighborhood functions are LS_insert, LS_swap, LS_reverse, and LS_mix

(1/3 insertion, 1/3 swap and 1/3 reverse). Any neighborhood function can be defined.