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How to use R's ellipsis feature when writing your own function?
... comment result in Dirk answer is not a list of lists. Is a list of length 4, which elements are language type. First object is a symbol - list, second is expression 1:10 and so on. That explain why [-1L] is needed: it removes expected symbol from provided arguments in ... (cause it is always a list...
How to find the statistical mode?
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413
One more solution, which works for both numeric & character/factor data:
Mode <- funct...
搭建高可用mongodb集群（四）—— 分片 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...个数据表 Collection1 存储了 1T 数据，压力太大了！在分给4个机器后，每个机器都是256G，则分摊了集中在一台机器的压力。也许有人问一台机器硬盘加大一点不就可以了，为什么要分给四台机器呢？不要光想到存储空间，实际运...
Difference between two lists
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242
Using Except is exactly the right way to go. If your type overrides Equals and GetHashCode, or ...
30条爆笑的程序员梗 PHP是最好的语言 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术
...今天不行，我一定要说服他们，PHP语言是最好的语言。
4.睡觉
我是一个苦b的程序员，今晚加班到快通宵了，困得快睁不开眼了，女上司很关心，问我要不要吃宵夜。
我没好气地说，宵夜就算了，能让我睡一觉就行了。
女上...
Is main() really start of a C++ program?
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answered Jan 24 '11 at 16:11
Edwin BuckEdwin Buck
62.4k66 gold badges8989 silver badges122122 bronze badges
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Numpy: find first index of value fast
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edited Oct 21 '13 at 7:44
Jacques Kvam
2,06611 gold badge2020 silver badges2727 bronze badges
answere...
How to split a string, but also keep the delimiters?
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edited Nov 24 '13 at 10:17
luiges90
4,17322 gold badges2727 silver badges4141 bronze badges
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How to use enums as flags in C++?
...num AnimalFlags
{
HasClaws = 1,
CanFly = 2,
EatsFish = 4,
Endangered = 8
};
inline AnimalFlags operator|(AnimalFlags a, AnimalFlags b)
{
return static_cast<AnimalFlags>(static_cast<int>(a) | static_cast<int>(b));
}
Etc. rest of the bit operators. Modi...
Simple (non-secure) hash function for JavaScript? [duplicate]
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142
I didn't verify this myself, but you can look at this JavaScript implementation of Java's Strin...