Question

我有两个清单：

xi_rppi = [[0.4404518],
 [0.35042380000000001,
  0.41857349999999999,
  0.087422100000000003,
  0.32525920000000003,
  0.31717889999999999,
  0.41572910000000002],
 [0.32572420000000002,
  0.2707909,
  0.37550240000000001,
  0.40988249999999998,
  0.36942079999999999,
  0.39833210000000002,
  0.34174739999999998]]

pi = [[1.0558920000000001],
 [1.0558920000000001,
  1.1739245,
  1.3051515,
  1.451047,
  1.613251,
  1.7935875000000001],
 [1.0558920000000001,
  1.1739245,
  1.3051515,
  1.451047,
  1.613251,
  1.7935875000000001,
  1.9940829999999998]]

例如，当我想将xi_rppi[1]与pi[1]相乘时，我可以这样做：

[a*b for a,b in zip(xi_rppi[1],pi[1])]

但我希望将整个列表xi_rppi与pi相乘。当我尝试上述方法时，我可以出错：

TypeError: can't multiply sequence by non-int of type 'list'

Answer 1

我不确定你想要一个扁平的输出或嵌套的输出，但看看这是否有意义 -

print([ a*b for xi_rppi_instance,pi_instance in zip(xi_rppi,pi) for a,b in zip(xi_rppi_instance,pi_instance)])

这是一个双for循环问题，我在列表解析中使用了两个for循环。样本输出会有所帮助！

Answer 2

您可以尝试以下代码

print [[a*b for a,b in zip(xi_rppi[i],pi[i])] for i in range(len(xi_rppi))]

Answer 3

您需要的是两个for循环：

result = [ [a*b  for a,b in zip(e1,e2) ] for e1,e2 in zip(xi_rppi,pi) ]

result将是：

[[0.46506953200560003],
 [0.3700096870296,
  0.49137368670075,
  0.11409908494815,
  0.4719663863824,
  0.5116891776039,
  0.7456465171462501],
 [0.34392957698640003,
  0.31788807188705004,
  0.4900875206136,
  0.5947587719774999,
  0.5959684750208,
  0.7144434754087501,
  0.6814726806341999]]

Answer 4

一线解决方案：

print([[sub_item[0] * sub_item[1] for sub_item in zip(item[0], item[1])] for item in zip(xi_rppi,pi)])

输出：

[[0.46506953200560003], [0.3700096870296, 0.49137368670075, 0.11409908494815, 0.4719663863824, 0.5116891776039, 0.7456465171462501], [0.34392957698640003, 0.31788807188705004, 0.4900875206136, 0.5947587719774999, 0.5959684750208, 0.7144434754087501, 0.6814726806341999]]

详细解决方案：

以上列表理解与：

相同

final=[]

for item in zip(xi_rppi,pi):
    semi_final=[]
    for sub_item in zip(item[0],item[1]):

        semi_final.append(sub_item[0]*sub_item[1])


    final.append(semi_final)
print(final)

TypeError：不能将序列乘以类型＆＃39; list＆＃39;的非int。两个清单

4 个答案: