I need help figuring out what i need to include in my python code for the Simulation Statistics part?
I need help figuring out what i need to include in my python code for the Simulation Statistics part?
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
I need help figuring out what i need to include in my python code for the Simulation Statistics part?
![Given inputs a, 6, 7, 8, ko, uo, nas:
1.5
.001
.05
2.5
100
2
10
The program outputs
==> Bull Kelp and Purple Urchin Population Simulator <==
- Model Parameters
Kelp growth rate:
Kelp death rate:
Urchin birth rate:
Urchin death rate:
Initial Population
Kelp population (in thousands) at t = 0:
Urchin population (in thousands) at t = 0:
- Simulation ---
Timescale:
Time t = 0: 100.000k kelp, 2.000k urchins
Time t = 1: 249.800k kelp, 7.000k urchins
Time t = 2:
Time t = 3:
Time t = 4:
Time t = 5:
---
622.751k kelp, 76.930k urchins
1508.970k kelp, 2280.018k urchins
331.946k kelp, 168603.957k urchins
0.000k kelp, 2545463.659k urchins
0.000k kelp, 0.000k urchins
Time t = 6:
Time t = 7:
0.000k kelp, 0.000k urchins
Time t = 8:
0.000k kelp, 0.000k urchins
Time t = 9: 0.000k kelp, 0.000k urchins
Time t = 10: 0.000k kelp, 0.000k urchins
---
Simulation Statistics
Average kelp population: 255.770k
Average urchin population: 246948.506k
---
Min kelp population was 0.000k at t=5.000
Max urchin population was 2545463.659k at t-5.000](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F49a1fd49-f0b5-4c35-b263-bc92e35ebc2a%2Fec3043c1-4a02-4dbd-b7f7-3ec25a55a0e7%2Fyk4ctml_processed.png&w=3840&q=75)
Transcribed Image Text:Given inputs a, 6, 7, 8, ko, uo, nas:
1.5
.001
.05
2.5
100
2
10
The program outputs
==> Bull Kelp and Purple Urchin Population Simulator <==
- Model Parameters
Kelp growth rate:
Kelp death rate:
Urchin birth rate:
Urchin death rate:
Initial Population
Kelp population (in thousands) at t = 0:
Urchin population (in thousands) at t = 0:
- Simulation ---
Timescale:
Time t = 0: 100.000k kelp, 2.000k urchins
Time t = 1: 249.800k kelp, 7.000k urchins
Time t = 2:
Time t = 3:
Time t = 4:
Time t = 5:
---
622.751k kelp, 76.930k urchins
1508.970k kelp, 2280.018k urchins
331.946k kelp, 168603.957k urchins
0.000k kelp, 2545463.659k urchins
0.000k kelp, 0.000k urchins
Time t = 6:
Time t = 7:
0.000k kelp, 0.000k urchins
Time t = 8:
0.000k kelp, 0.000k urchins
Time t = 9: 0.000k kelp, 0.000k urchins
Time t = 10: 0.000k kelp, 0.000k urchins
---
Simulation Statistics
Average kelp population: 255.770k
Average urchin population: 246948.506k
---
Min kelp population was 0.000k at t=5.000
Max urchin population was 2545463.659k at t-5.000
![1 print('==> Bull Kelp and Purple Urchin Population Simulator <==\n')
2 print('- Model Parameters ---')
a float(input ("Kelp growth rate: \n"))
if a<0:
print("Error: cannot have a negative growth rate")
exit()
b =float(input("Kelp death rate: \n"))
8 if b<0:
9
10
11 c =float
12 if c<0:
13
14
4
5
6
16
17
18
19 ko
29
30
31
print("Error: cannot have a negative death rate")
exit()
ko = max(0, float(input()))
20 u0= max(0, float(input()))
21
k =k0
33
34
35
22
u =u0
23 print( \n--- Initial Population ---')
24 print (f"Kelp population (in thousands) at t = 0: ")
25 print (f"Urchin population (in thousands) at t = 0: \n")
26
27 print('--- Simulation ---')
m m m
print("Error:
exit()
36
(input("Urchin birth rate: \n"))
print("Error: cannot have a negative birth rate")
exit()
d =float (input ("Urchin death rate: \n"))
if d<0:
37
cannot have a negative death rate")
n = int(input("Timescale: \n"))
if n < 0:
print("Error: cannot have a negative timescale ")
exit()
for t in range (n+1): # 0, 1
print (f"Time t = {t}: {k:.3f}k kelp, {u:.3f}k urchins")
k_next = max(0, k + a*k - b*k*u)
u_next
max (0, u + c*k*u - d*u)
k = k_next
u = u next](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F49a1fd49-f0b5-4c35-b263-bc92e35ebc2a%2Fec3043c1-4a02-4dbd-b7f7-3ec25a55a0e7%2F8jhbb3u_processed.png&w=3840&q=75)
Transcribed Image Text:1 print('==> Bull Kelp and Purple Urchin Population Simulator <==\n')
2 print('- Model Parameters ---')
a float(input ("Kelp growth rate: \n"))
if a<0:
print("Error: cannot have a negative growth rate")
exit()
b =float(input("Kelp death rate: \n"))
8 if b<0:
9
10
11 c =float
12 if c<0:
13
14
4
5
6
16
17
18
19 ko
29
30
31
print("Error: cannot have a negative death rate")
exit()
ko = max(0, float(input()))
20 u0= max(0, float(input()))
21
k =k0
33
34
35
22
u =u0
23 print( \n--- Initial Population ---')
24 print (f"Kelp population (in thousands) at t = 0: ")
25 print (f"Urchin population (in thousands) at t = 0: \n")
26
27 print('--- Simulation ---')
m m m
print("Error:
exit()
36
(input("Urchin birth rate: \n"))
print("Error: cannot have a negative birth rate")
exit()
d =float (input ("Urchin death rate: \n"))
if d<0:
37
cannot have a negative death rate")
n = int(input("Timescale: \n"))
if n < 0:
print("Error: cannot have a negative timescale ")
exit()
for t in range (n+1): # 0, 1
print (f"Time t = {t}: {k:.3f}k kelp, {u:.3f}k urchins")
k_next = max(0, k + a*k - b*k*u)
u_next
max (0, u + c*k*u - d*u)
k = k_next
u = u next
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