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Delete group if NaN is present anywhere in multiple columns Languages

Delete group if NaN is present anywhere in multiple columns

I am trying to clean my dataframe such that if my "Base_2007" and "Base_2011" column contains NA, then I should completely drop that county. In my case since both Counties contains NA both of them will be dropped. Thus empty dataset will be returned. Is it possible to do something...
8 hours before 发表评论
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Create new list with the count of occurrences for each element in an objective list Languages

Create new list with the count of occurrences for each element in an objective list

New to Python here.I am looking for a simple way of creating a list (Output), which returns the count of the elements of another objective list (MyList) while preserving the indexing(?).
02月18日 发表评论
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Python 3 pandas.groupby.filter Languages

Python 3 pandas.groupby.filter

I am trying to perform a groupby filter that is very similar to the example in this documentation: pandas groupby filter
02月16日 发表评论
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Data-frame filter according to a condition Languages

Data-frame filter according to a condition

I have a data-frame like I want to filter them in a priority like this: If colC == E then return E, after that check colB == D return D otherwise return colA The output is
02月13日 发表评论
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Get index of series where value is True Languages

Get index of series where value is True

How do I select only True values?What I have tried:This includes "c" while I need to return a list of a, b and d
02月03日 发表评论
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When should I ever want to use pandas apply() in my code? Languages

When should I ever want to use pandas apply() in my code?

This is a self-answered QnA meant to instruct users about the pitfalls and benefits of apply. I have seen many answers posted to questions on Stack Overflow involving the use of apply. I have also seen users commenting under them saying that "apply is slow", and should be avoided".
01月30日 发表评论
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dataframe KeyError, although it exists Languages

dataframe KeyError, although it exists

Given the dataif I try constructing a dataframe like thisit works fine. However, this(which I would expect to be equivalent) fails with the weird error: KeyError: 'x'. What's wrong?
01月29日 发表评论
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pandas filling nans by mean of before and after non-nan values Languages

pandas filling nans by mean of before and after non-nan values

I would like to fill df's nan with an average of adjacent elements.Consider a dataframe:My desired output is:
01月29日 发表评论
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How to zip two lists of tuples by row? Languages

How to zip two lists of tuples by row?

I have two lists like so:How do I combine the lists into one set of tuples for a pandas dataframe?like so:
01月25日 发表评论
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Pandas: remove multiple rows based on condition Languages

Pandas: remove multiple rows based on condition

Below is a subset of a pandas dataframe I have and I am trying to remove multiple rows based on some conditions.
01月25日 发表评论
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