Up to 4276.1 generations ago, the population of the X deme was steady at 4650. It then entered a phase of linear change until 2490.74 generations and size 9380. Following this, there was a exponential change to 3383 individuals, lasting until 1170.32. Since 1170.32 generations ago, the population has changed from 3383 to 8634 at a exponential pace.
time_units: generations
demes:
  - name: X
    start_time: .inf
    epochs:
      - start_size: 4650
        end_time: 4276.1
      - start_size: 4650
        end_size: 9380
        end_time: 2490.74
        size_function: linear
      - start_size: 9380
        end_time: 1170.32
        end_size: 3383
        size_function: exponential
      - end_time: 0
        start_size: 3383
        end_size: 8634
        size_function: exponential