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np.mean() vs np.average() in Python NumPy?
I notice that
5 Answers
5
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In a PHP project, what patterns exist to store, access and organize helper objects? [closed]
...ncy-injection-to.html
http://googletesting.blogspot.com/2008/08/where-have-all-singletons-gone.html
Alternatives
a service provider
http://java.sun.com/blueprints/corej2eepatterns/Patterns/ServiceLocator.html
dependency injection
http://en.wikipedia.org/wiki/Dependency_injection
and a php expl...
What is the preferred/idiomatic way to insert into a map?
...
First of all, operator[] and insert member functions are not functionally equivalent :
The operator[] will search for the key, insert a default constructed value if not found, and return a reference to which you assign a value. Obvi...
How do I write a short literal in C++?
...rt enough to compile this as if it's a short literal (i.e. it wouldn't actually allocate an int and then cast it every time).
The following illustrates how much you should worry about this:
a = 2L;
b = 2.0;
c = (short)2;
d = '\2';
Compile -> disassemble ->
movl $2, _a
movl $2, _b
m...
What are attributes in .NET?
...ur objects/methods/properties.
For example I might declare an Attribute called: DisplayOrder so I can easily control in what order properties should appear in the UI. I could then append it to a class and write some GUI components that extract the attributes and order the UI elements appropriately...
大数据时代的数据化运营 - 资讯 - 清泛网 - 专注C/C++及内核技术
...地推出不同档次的运营活动，提供比较精准的后续版本的开发和运营活动的方案。根据用户不同的层别区分，对他去做营销。
以个人的判断来讲，可以看到快速起来的推广期，还有比较短的推广期，还有一个长尾，这种数据...
Java内存泄露原因详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...费称为内存泄露。内存泄露有时不严重且不易察觉，这样开发者就不知道存在内存泄露，但有时也会很严重，会提示你Out of memory。
那么，Java内存泄露根本原因是什么呢？长生命周期的对象持有短生命周期对象的引用就很可能...
Retargeting solution from .Net 4.0 to 4.5 - how to retarget the NuGet packages?
...ers a feature that makes this a lot simpler: just do update-package -reinstall -ignoreDependencies from the Package Manager Console.
NuGet 2.0 doesn't handle re-targeting your applications very well. In order to change your packages' target frameworks, you must uninstall and reinstall the packages...
如何抓住痛点做出让用户尖叫的产品 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...操作体验上的停顿，不能在产品核心流程核心功能的设计开发上妥协，要去跟提高0.1秒钟加载速度较真，去跟把整个页面大小缩小1K较真。只有追求极致，才能把产品真正做到好的用户体验。
核心功能是产品的生存之本，除非...
Difference Between One-to-Many, Many-to-One and Many-to-Many?
...to a skill, but the skill need not relate back to just those people. Typically it would, but such symmetry is not a requirement. Take love, for example -- it is bi-directional ("I-Love", "Loves-Me"), but often asymmetric ("I love her, but she doesn't love me")!
All of these are well supported by H...