Chris Schopp chrisschopp

Supply chain and manufacturing simulation.

chrisschopp / sample_from_gamma_distribution.py

Last active January 12, 2021 03:30

	def sample_from_gamma_distribution(shape, scale):
	while True:
	yield np.random.default_rng().gamma(shape, scale)

chrisschopp / step_list.py

Last active January 12, 2021 03:30

	step_list = [
	{
	"step_name": "STEP A",
	"process_time": sample_from_gamma_distribution(shape=4, scale=1.0),
	},
	{
	"step_name": "STEP B",
	"process_time": sample_from_gamma_distribution(shape=4, scale=0.5),
	},
	{

chrisschopp / generate_interarrival_time.py

Last active January 12, 2021 03:30

	def generate_interarrival_time(scale):
	"""When called, returns the time until the next lot arrives
	at the factory.

	The scale parameter is passed to the exponential distribution,
	where it is equal to the mean and standard deviation.
	"""
	while True:
	yield np.random.exponential(scale)

chrisschopp / generate_lot_id.py

Last active December 24, 2020 00:57

	def generate_lot_id():
	'''Generator that assigns an incremental number to each lot,
	starting with lot_id = 1.
	'''
	lot_id = 1
	while True:
	yield lot_id
	lot_id += 1