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使用任意数量的条件过滤Pandas Dataframe(Filter Pandas Dataframe using an arbitrary number of conditions)

 我很熟悉使用Pandas进行基本过滤和查询。 例如，如果我有一个名为df的数据帧，我可以做df[df['field1'] < 2]或df[df['field2'] < 3] 。 我也可以将多个标准链接在一起，例如： 
 

 df[(df['field1'] < 3) & (df['field2'] < 2)] 。 
 

 如果我事先不知道需要使用多少条件怎么办？ 有没有办法将任意数量的这些操作“链接”在一起？ 我想传递一个过滤器列表，如[('field1', 3), ('field2', 2), ('field3', 4)] ，这将导致这三个条件链接在一起。 
 

 谢谢！ 

I am comfortable with basic filtering and querying using Pandas. For example, if I have a dataframe called df I can do df[df['field1'] < 2] or df[df['field2'] < 3]. I can also chain multiple criteria together, for example:
 

df[(df['field1'] < 3) & (df['field2'] < 2)].
 

What if I don't know in advance how many criteria I will need to use? Is there a way to "chain" an arbitrary number of these operations together? I would like to pass a list of filters such as [('field1', 3), ('field2', 2), ('field3', 4)] which would result in the chaining of these 3 conditions together.
 

Thanks!

原文：https://stackoverflow.com/questions/47147414
更新时间：2024-01-19 07:01

最满意答案

 你需要通过Javascript做任何理由吗？ 您只能使用CSS执行此操作。 
 

 HTML： 
 

<input type="checkbox" />
<label>Check Me!</label>

 

 CSS： 
 

input[type=checkbox] + label {
    color: black;
}
input[type=checkbox]:checked + label {
    background: red;
}

 

 在这里演示 

Any reason you need to do this via Javascript? You can do this using CSS only.
 

HTML:
 

<input type="checkbox" />
<label>Check Me!</label>

 

CSS:
 

input[type=checkbox] + label {
    color: black;
}
input[type=checkbox]:checked + label {
    background: red;
}

 

DEMO HERE

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