[英]numpy array filtering and clubbing elements
I've a numpy array like: [[ 0, 1] [ 1 ,0] [ 2, 30] [ 3, 2] [ 4, 6] [ 5, 31] [ 6, 5] [ 7, 8] [ 8, 7] [ 9, 10] [10, 9] [11, 10] [12 , 1] ]
我有一个类似numpy的数组:
[[ 0, 1] [ 1 ,0] [ 2, 30] [ 3, 2] [ 4, 6] [ 5, 31] [ 6, 5] [ 7, 8] [ 8, 7] [ 9, 10] [10, 9] [11, 10] [12 , 1] ]
I want to club common element values found anywhere and make a list like: 我想汇总在任何地方都可以找到的通用元素值,并列出如下列表:
[0, 1, 12][2, 30, 3][4, 6, 5, 31][7, 8][9, 10, 11]
Is there any simple way I can achieve this? 有什么简单的方法可以实现这一目标吗?
You can do something like as follows: 您可以执行如下操作:
input_list = [[0, 1], [1, 0], [2, 30], [3, 2], [4, 6], [5, 31], [6, 5],
[7, 8], [8, 7], [9, 10], [10, 9], [11, 10], [12 , 1]]
result = []
for i in range(len(input_list)):
if not result:
result.append(set(input_list[i]))
else:
flag = False
last_merged_index = -1
j = 0
while j < len(result):
if not set(input_list[i]).isdisjoint(result[j]):
result[j] |= set(input_list[i])
flag = True
if last_merged_index != -1:
result[j] |= result[last_merged_index]
result.pop(last_merged_index)
last_merged_index = j-1
else:
last_merged_index = j
j += 1
else:
j += 1
if not flag:
result.append(set(input_list[i]))
print(result)
Output: 输出:
[{0, 1, 12}, {2, 3, 30}, {4, 5, 6, 31}, {8, 7}, {9, 10, 11}]
For your second input: 对于您的第二个输入:
input_list = [[0, 1], [1, 0], [2, 30], [3, 2], [4, 6], [5, 31], [6, 5], [7, 8], [8, 7], [9, 10], [10, 9], [11, 10], [12 , 1],
[13, 14], [14, 16], [15, 16], [16, 14], [17, 18], [18, 17], [19, 20], [20, 21], [21, 23], [22, 26], [23, 21], [24, 23], [25, 24],
[26, 27], [27, 26], [28, 29], [29, 28], [30, 2], [31, 2]]
You should get the following: 您应该获得以下信息:
[{0, 1, 12}, {2, 3, 4, 5, 6, 30, 31}, {8, 7}, {9, 10, 11}, {16, 13, 14, 15}, {17, 18}, {19, 20, 21, 23, 24, 25}, {26, 27, 22}, {28, 29}]
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