Singel-Channel-Queue/single_channel.py at main · Sourav-Ghosh1/Singel-Channel-Queue · GitHub

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# -*- coding: utf-8 -*-
"""Single Channel.ipynb

Automatically generated by Colaboratory.

Original file is located at
    https://colab.research.google.com/drive/1SSZ0dQ-q3L_tEbe1VRSbqfq4CgOwJoDo
"""


# Commented out IPython magic to ensure Python compatibility.
from scipy.stats import *


print("Enter Number of Customer: ", end=" ")
n = int(input())
print("Do  you Want to generate (Inter Arrival & Service Time) Randomly?? <'y = yes'> or <'n = no'>: ", end=" ")
optn = str(input().lower())
print()

intArrivalTime = []
arrivalTime = []
serviceTime = []
SBT = []
waitingTime = []
SET = []
customerSpendInSystem = []
idleTime = []

int_arrivalT = 0
wait_count = 0
idel_count = 0


if optn[0] == 'n':
    # inter arrival Time 'User Choosen' input
    for i in range(n):
        if i == 0:
            intArrivalTime.append(0)
            print("Inter Arrival Time for customer 1: 0")
        else:
            intArrivalTime.append(int(input("Inter Arrival Time for Customer %i: " % (i + 1))))

    #service Time 'User Choosen' input
    print()
    for i in range(n):
        serviceTime.append(int(input("Service Time for Customer %i: " % (i + 1))))


if optn[0] == 'y':
    print(" Random \n\t  Distribution " "\n\n POISON")
    intArrivalTime.append(0)
    data_poisson = str(poisson.rvs(mu=5.6, size=(n - 1)))  # μ = 5.6 customer/min (for n-1 customer) when n = 0, None of customer Inter Arrives Times
    for i in range(data_poisson.__len__()):
        if data_poisson[i].isnumeric():
            intArrivalTime.append(int(data_poisson[i]))
    for i in range(n):
        print("Inter Arrival Time Customer %i: %i" % (i + 1, intArrivalTime[i]))


    print("\n EXPONENTIAL")
    data_expon = str(expon.rvs(scale=1, size=n))  # and  λ= 1 customer/min (for n customer)
    data_expon = data_expon.replace("[", "")
    data_expon = data_expon.replace("]", "")

    serviceTime = list(map(float, data_expon.split()))

    for i in range(n):
        print("Service Time Customer %i: %f" % (i + 1, serviceTime[i]))

for i in range(n):

    if i == 0:
        arrivalTime.append(0)
    else:
        int_arrivalT = int_arrivalT + intArrivalTime[i]
        arrivalTime.append(int_arrivalT)


    if i == 0:
        SBT.append(0)
    else:
        if float(arrivalTime[i]) > float(SET[i - 1]):
            SBT.append(float(arrivalTime[i]))
        else:
            SBT.append(float(SET[i - 1]))


    if i == 0:
        waitingTime.append(0)
    else:
        if SBT[i] - arrivalTime[i] > 0:
            waitingTime.append(float(SBT[i] - arrivalTime[i]))
            wait_count += 1
        else:
            waitingTime.append(0)


    if i == 0:
        SET.append(float(serviceTime[i] + arrivalTime[i]))
    else:
        SET.append(float(serviceTime[i] + SBT[i]))


    customerSpendInSystem.append(float(waitingTime[i] + serviceTime[i]))

    # server idle time
    if i == 0:
        idleTime.append(0)
    else:
        if float(arrivalTime[i]) > float(SET[i - 1]):
            idleTime.append(float(arrivalTime[i] - SET[i - 1]))
            idel_count += 1
        else:
            idleTime.append(0)


print("  Cust. | Inter Arrival | Arrival | Service | Service T. | Waiting T. | Service T. | C. Spend T. | Server   ")
print("   No.  |  Time         |  Time   |  Time   |   Begin    |  in Queue  |   End      |  in System  | Idle T.  ")

for i in range(n):
    if i == 0:
        print(
            "    %3i           -           %3i     %1f     %1.2f      %1.4f        %5.3f         %5.3f          -     "
#             % (i + 1, arrivalTime[i], serviceTime[i], SBT[i], waitingTime[i], SET[i], customerSpendInSystem[i]))
    else:
        print(
            "   %3i         %3i           %3i     %1f     %1.2f      %1.4f        %5.3f         %5.3f       %5.3f  "
#             % (i + 1, intArrivalTime[i], arrivalTime[i], serviceTime[i], SBT[i], waitingTime[i], SET[i],
               customerSpendInSystem[i], idleTime[i]))