IndexError:索引2超出大小为2的轴0(列表调度)的边界
问题描述:
尝试安排以下操作时出现问题。 for循环似乎有错误。特别是在这部分:mM[iRow,j] = p[k]
。 但我不明白什么是错的。IndexError:索引2超出大小为2的轴0(列表调度)的边界
m=2 # machines
n= 4 # number of jobs
p= np.array([1,2,3,4]) # processing times
iTimemax = np.sum(p)
# Initialisation
iTime = 0
k= 0
iRow = 0 # the iRowth job of the machine
mM=np.zeros((n,m))
for i in range (iTimemax):
for j in range (m):
if np.sum(mM[:,j]) <= iTime:
mM[iRow,j] = p[k]
k = k + 1 # next job to be assigned
iRow = iRow + 1
iTime = iTime +1
答
你的p数组的长度是4,并且你在每次进入if条件时增加k。您需要在if条件中添加检查或在外部循环中重置k。
例如:
import numpy as np
m=2 # machines
n= 4 # number of jobs
p= np.array([1,2,3,4]) # processing times
iTimemax = np.sum(p)
# Initialisation
iTime = 0
k= 0
iRow = 0 # the iRowth job of the machine
mM=np.zeros((n,m))
for i in range (iTimemax):
for j in range (m):
if np.sum(mM[:,j]) <= iTime and k < len(p):
mM[iRow,j] = p[k]
k = k + 1 # next job to be assigned
iRow = iRow + 1
iTime = iTime +1