我有以下数据框df：
A B procedure
aa pass 2
aa pass 1
aa fail 1
b pass 2
b pass 1
我想要下表df1
A B procedure
aa pass 2
aa pass 1
b pass 2
b pass 1
基本上，如果对于给定的过程，如果再次运行，并且这次是通过，则我想保留通过并消除失败。我不确定如何根据多个条件删除行
答案 0 :(得分：0)
查看所需结果，您只需为列/**
* An *action* is a plain object that represents an intention to change the
* state. Actions are the only way to get data into the store. Any data,
* whether from UI events, network callbacks, or other sources such as
* WebSockets needs to eventually be dispatched as actions.
*
* Actions must have a `type` field that indicates the type of action being
* performed. Types can be defined as constants and imported from another
* module. It's better to use strings for `type` than Symbols because strings
* are serializable.
*
* Other than `type`, the structure of an action object is really up to you.
* If you're interested, check out Flux Standard Action for recommendations on
* how actions should be constructed.
*
* @template T the type of the action's `type` tag.
*/
export interface Action<T = any> {
type: T
}
仅选择pass值
B