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phoen's Question
Computer Science
Posted 3 months ago
number of entity occurrences, when the (n-1) values 
are fixed for the other entity types
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Answer from Sia
Posted 3 months ago
具体来说,如果我们有 nn 种类型的实体,并且我们知道除了一种类型外,其他 n1n-1 种类型的实体数量是固定的,那么我们可以通过以下公式计算最后一种类型的实体数量:
Nlast=Ntotali=1n1NiN_{last} = N_{total} - \sum_{i=1}^{n-1} N_i
其中 NlastN_{last} 是最后一种类型的实体数量,NtotalN_{total} 是所有实体的总数量,NiN_i 是第 ii 种类型的实体数量。

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