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Grouping functions (tapply, by, aggregate) and the *apply family

Whenever I want to do something "map"py in R, I usually try to use a function in the apply family. 10 Answers ...
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Optimizing away a “while(1);” in C++0x

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How can I determine installed SQL Server instances and their versions?

...ervers installed on your network. There are configuration options you can set to prevent a SQL Server from showing in the list. To do this... At command line: svrnetcn In the enabled protocols list, select 'TCP/IP', then click properties. There is a check box for 'Hide server'. ...
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TCP 的那些事儿(上) - 更多技术 - 清泛网 - 专注C/C++及内核技术

TCP 的那些事儿(上)TCP是一个巨复杂的协议,因为他要解决很多问题,而这些问题又带出了很多子问题和阴暗面。所以学习TCP本身是个比较痛苦的过程,但对于学习的... TCP是一个巨复杂的协议,因为他要解决很多问题,而这些...
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count (non-blank) lines-of-code in bash

In Bash, how do I count the number of non-blank lines of code in a project? 18 Answers ...
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How to concatenate a std::string and an int?

I thought this would be really simple but it's presenting some difficulties. If I have 23 Answers ...
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How to read an entire file to a string using C#?

What is the quickest way to read a text file into a string variable? 16 Answers 16 ...
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Drop shadow for PNG image in CSS

...<feGaussianBlur in="SourceAlpha" stdDeviation="4"/> <feOffset dx="12" dy="12" result="offsetblur"/> <feFlood flood-color="rgba(0,0,0,0.5)"/> <feComposite in2="offsetblur" operator="in"/> <feMerge> <feMergeNode/> ...
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Detect if device is iOS

... This sets the variable _iOSDevice to true or false _iOSDevice = !!navigator.platform.match(/iPhone|iPod|iPad/); share | improv...
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Why would a static nested interface be used in Java?

I have just found a static nested interface in our code-base. 11 Answers 11 ...