英文:
pandas.concat() second argument?
问题
I freshly installed a program through pip3 and it now fails like this:
pandas.concat(dataFrameList, 0)
TypeError: concat() takes 1 positional argument, but 2 were given
I looked at the concat() function prototype in Pandas 0.9, 1.x and 2.x documentation but it appears that this second argument was never allowed; it works with Pandas 1.5 though...
What is the 0 supposed to do? Is it safe to remove it from the code?
英文:
I freshly installed a program through pip3 and it now fails like this:
pandas.concat(dataFrameList, 0)
TypeError: concat() takes 1 positional argument, but 2 were given
I looked at the concat() function prototype in Pandas 0.9, 1.x and 2.x documentation but it appears that this second argument was never allowed; it works with Pandas 1.5 though...
What is the 0 supposed to do? Is it safe to remove it from the code?
答案1
得分: 2
"我认为这是对axis参数的缩写：
pandas.concat(dataFrameList, axis=0)
这是默认参数，因此可以移除：
pandas.concat(dataFrameList)"
英文:
I think it is shorcut to axis parameter:
pandas.concat(dataFrameList, axis=0)
what is default parameter, so should be removed:
pandas.concat(dataFrameList)
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