小编use*_*198的帖子

我试图在json文件中读入pandas数据框.这是json文件的第一行:

{"votes": {"funny": 0, "useful": 0, "cool": 0}, "user_id": "P_Mk0ygOilLJo4_WEvabAA", "review_id": "OeT5kgUOe3vcN7H6ImVmZQ", "stars": 3, "date": "2005-08-26", "text": "This is a pretty typical cafe.  The sandwiches and wraps are good but a little overpriced and the food items are the same.  The chicken caesar salad wrap is my favorite here but everything else is pretty much par for the course.", "type": "review", "business_id": "Jp9svt7sRT4zwdbzQ8KQmw"}

我正在尝试执行以下操作:df = pd.read_json(path) 我收到以下错误(完全回溯):

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File …

我想合并两个具有大致相同行数的数据帧.但合并需要以特殊方式完成.

假设两个数据帧是A和B.并且Ai,Bi表示i各个数据帧的第一行.

然后我想要一个包含以下行的新数据帧:

A1

B1 

A2 

B2 

...

这是一个玩具示例:

A <- data.frame(col1 = paste("A", 1:5, sep = ""), col2 = rivers[1:5])
B <- data.frame(col1 = paste("B", 1:6, sep = ""), col2 = rivers[1:6])

我想要一个新的数据帧C.

> C

   col1 col2

1    A1  735

6    B1  735

2    A2  320

7    B2  320
...

我如何在R中有效地做到这一点？请注意,两行之间没有空行,如此处所示.