一.scale函数 R语言base库中自带数据标准化接口scale函数,函数介绍如下 Usage scale(x, center = TRUE, scale = TRUE) Arguments x: a numeric matrix(like object). center: either a logical value or a numeric vector of length equal to the number of columns of x. scale: either a logic…
A UIScreen object contains the bounding rectangle of the device’s entire screen. When setting up your application’s user interface, you should use the properties of this object to get the recommended frame rectangles for your application’s window. UI…
关于scale Groups的概念,在看Dynamics crm online的时候,一直不理解缩放组scale group的概念,后来查到GP也在用这个概念,想想不就是动态扩展嘛,马上顿悟了,原来如些. From : https://community.dynamics.com/gp/b/dynamicsgp/posts/scale-groups-for-the-web-client Scale Groups are a very interesting feature for the Web…
原文地址:http://i.cnblogs.com/EditPosts.aspx?opt=1. I wrote a first version of this posting on consistency models about a year ago, but I was never happy with it as it was written in haste and the topic is important enough to receive a more thorough trea…
Some quick thoughts from Serverlessconf, Austin in April 2017 I wanted to take a bit of time to write up what I thought were some of the main themes I noticed at Serverlessconf Austin. I learned a lot and met some great people, so thanks a ton to A C…
应该说搞分布式系统必读的文章了,转过来,这是2008年12月Werner revise过的版本,先贴上内容简介:分布式系统的CAP理论 CAP理论(data consistency, system availability, and tolerance),也就是数据一致性,系统可用性和网络分区容错性,在一个分布式系统中CAP是不能同时保证的,最多只能同时满足两个.如果一个系统不必考虑网络分区容错性,那么它可以同时取得数据一致性和可用性,这通常可以通过处理协议来保证. 然而不考虑网络分区容错…
Latest Paho Status (2) 摘自:http://modelbasedtesting.co.uk/ I last wrote about the state of Paho in October. This post is a continuation of that one. Java Client Some of you might know that James Sutton, who is co-project lead with me and has worked on…
