Table 1.

Options for the parameters controlling scaling of population size and event time

size.scale	‘log’	Scale the population size logarithmically, with the base parameter log.base [default]
	‘linear’	Scale population size linearly, with scale parameter linear.scale
	‘topology’	Ignore population size and event times, output only the topological relationship
time.scale	‘4Ne’	Set time unit to 4Ne [default]
	‘kyear’	Set time unit to 1000 years
	‘generation’	Set time unit to generations
	‘years’	Set time unit to years
	‘log10year’	Scale time with function ‘${\log }_{10}(\text{years} \text{before} \text{present})$’

Note: Further details can be found in the program documentation and the tutorial file.