generate_naive: function to perform ABC-SMC
In thijsjanzen/enviDiv:

function to perform ABC-SMC

generate_naive(
  number_of_particles = 1000,
  min_tips = 50,
  max_tips = 150,
  model = -1,
  emp_tree = NULL,
  crown_age = NULL,
  write_to_file = FALSE,
  file_name
)

`number_of_particles`	number of particles used per iteration of the SMC algorithm
`min_tips`	minimum number of tips
`max_tips`	maximum number of tips
`model`	used water model
`emp_tree`	phy object holding phylogeny of the tree to be fitted on
`crown_age`	crown age
`write_to_file`	boolean, if TRUE, results are written to file.
`file_name`	file name