How to find all combinations between string vectors in python
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考虑以下两个字符串序列：
1 2 | Salutation = ["Hello","Hi"] Names = ["Alice","Matt","Franck","Julia"] |
我正在寻找把这些序列合并到
1 | ["Hello_Alice","Hi_Alice","Hello_Matt","Hi_Matt","Hello_Franck","Hi_Franck","Hello_Julia","Hi_Julia"] |
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或者用任何分隔符。
R中的等效值为：
1 | c(outer(Salutations, Names, paste, sep="_")) |
你要找的是
1 2 3 | import itertools output = ['_'.join(i) for i in itertools.product(Salutation, Names)] #or whatever separator you want |
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一种方法是使用嵌套的for循环，如下所示：
1 2 3 4 | l = [] for s in Salutation: for n in Names: l.append(s +"_" + n) |