Dears,
I am a postgraduate student and a new user to spyder software too.
I am using this program by python language programming and i pass a long way to learn python and spyder to able to insert my code.
But I faced some errors and I tried to solve it and i succeed but some of them I tried but I don't know what's the problem.
So, I am glad to have this huge community to ask respected experts like you and I wish to support me to solve this issue since I don't have any guide know this software in my college.
the error in the equation #2
for b in range(1,3):
#create constraints
m.addConstr(quicksum(x[b,j,t] <=1 for j in J for t in range(r[b],(d[b]-p[b]+1))),name="block_allocation") #eqution 2
the error that showed me up is
>>> runfile('C:/Users/Ahmed/AppData/Roaming/Microsoft/Windows/Network Shortcuts/operating_roomintegrated.py', wdir='C:/Users/Ahmed/AppData/Roaming/Microsoft/Windows/Network Shortcuts')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\ProgramData\Anaconda2\lib\site-packages\spyder\utils\site\sitecustomize.py", line 866, in runfile
execfile(filename, namespace)
File "C:\ProgramData\Anaconda2\lib\site-packages\spyder\utils\site\sitecustomize.py", line 87, in execfile
exec(compile(scripttext, filename, 'exec'), glob, loc)
File "C:/Users/Ahmed/AppData/Roaming/Microsoft/Windows/Network Shortcuts/operating_roomintegrated.py", line 31
m.addConstr(quicksum(x[b,j,t] <=1 for j in J for t in range(r[b],(d[b]-p[b]+1))),name="block_allocation") #eqution 2
^
IndentationError: expected an indented block
this my code:
# -*- coding: utf-8 -*-
"""
Created on Sun Apr 02 19:36:07 2017
@author: Ahmed
"""
from gurobipy import*
try:
m = Model('operating_room')
#Data
b= [1,2,3]
n= [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25]
j= [1,2,3,4,5,6,7,8,9,10,11,12,13]
t=[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32]
W=0.5
p[b]= 15
h[b]= [1,2,3]
m.update()
#create variables
X[j] =m.addVar(vtype=GRB.BINARY, name="X[j]")
Y[n] =m.addVar(vtype=GRB.BINARY, name="Y[n]")
x[b,j,t] = m.addVar(vtype=GRB.BINARY,name="x[b,j,t]")
y[n,b] = m.addVar(vtype=GRB.BINARY,name="y[n,b]")
m.update()
#set objective
m.setObjective(quicksum(X[j] for j in J )+ W*(quicksum(Y[n] for n in N)),GRB.MINIMIZE) #eqution 1
for b in range(1,3):
#create constraints
m.addConstr(quicksum(x[b,j,t] <=1 for j in J for t in range(r[b],(d[b]-p[b]+1))),name="block_allocation") #eqution 2
#equation 3
for b in range(1,b):
for j in J:
for t in T:
m.addConstr(x[b,j,t] <= X[j] ,name="allocation_to_open_OR")
#equation 4
for j in J:
for t in T:
m.addConstr(quicksum(x[b,j,l]<=1 for b in range(1:B) for l in range(t-p[b]+1:t)),name="overlaping_blocks")
#equation 5
for b in range(1:B):
m.addConstr(quicksum(y[n,b]=h[b],for n in N),name="surgical_nurse_demand")
#equation 6
for n in N:
for b in range(1:B):
m.addConstr(y[n,b]<=Y[n],name="used_surgical_nurses")
#equation 7
for b,b1 in range(1:B):
for n in N:
for t in T:
m.addConstr(quicksum(x[b,j,l],for j in J for l in range(t-p[b]+1:t)) + quicksum(x[b1,j,l] <= (3-y[n,b]-y[n,b1]),for j in J
for l in range(t-p[b1]+1:t)),name="link to scheduling")
#equation 8
for b in range(1:B):
for j in J:
for t in T:
m.addConstr(x[b,j,t] in {0,1},name="integerity_1")
#equation 9
for j in J:
m.addConstr(X[j] in {0,1},name="integerity_2")
#equation 10
for b in range(1:B):
for n in N:
m.addConstr(y[n,b] in {0,1},name="integerity_3")
#equation 11
for n in N:
m.addConstr(Y[n] in {0,1},name="integerity_4")
#equation 12
for n in N:
for b,b1 in range(1:B):
for o[b]!= o[b1]:
m.addConstr(y[n,b]+y[n,b1]<=1,name="assignment_of_nurses_in_different_OR")
#equation 13
m.addConstr(max(s[b],s[b1])<min(s[b]+p[b],s[b1]+p[b1]),name="prevent_overlapping_in_diff_OR")
m.optimize()
