Given a population of strings, this function mutates all individuals by randomly changing an element of the string.
mutationStringRandomChange(population, parameters = list())mutated population
List of permutations
list of parameters, with parameters$mutationRate and parameters$lts.
parameters$mutationRate should be between 0 and 1 (but can be larger than 1). The mutation rate determines the number of interchanges
performed, relative to the permutation length (N). 0 means none. 1 means N interchanges.
The default is 1/N. parameters$lts are the possible letters in the string.