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This slidify-based deck introduces the shinypackage from R-Studio and walks one through the development of an interactive application that presents us... 阅读全文
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Usually when I create slide decks these days I used markdown and slidy. However, I recently was asked to present using an existingRevolutionMicrosoft ... 阅读全文
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It has been possible for some years to launch a web map from within R. A number of packages for doing this are available, including:RgoogleMaps, an in... 阅读全文
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This semester I'm teaching from Hastie, Tibshirani, and Friedman's book,The Elements of Statistical Learning, 2nd Edition. The authors provide aMixtur... 阅读全文
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A Bayes factor (BF) is a statistical index that quantifies the evidence for a hypothesis, compared to an alternative hypothesis (for introductions to ... 阅读全文
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RWeka(http://cran.r-project.org/web/packages/RWeka/index.html) ：1) 数据输入和输出WOW()：查看Weka函数的参数。Weka_control()：设置Weka函数的参数。read.arff()：读Weka Attribute-Rel... 阅读全文
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When it comes to theNBA draft, experts tend to argue about a number of things: at whichposition willa player be selected? what is the best draft class... 阅读全文
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Jay&I cover dashboards in Chapter 10 ofData-Driven Security(the book) but have barely mentioned them on the blog. That’s about to change with a new se... 阅读全文
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RFM模型：R(Recency)表示客户最近一次购买的时间有多远，F(Frequency)表示客户在最近一段时间内购买的次数，M (Monetary)表示客户在最近一段时间内购买的金额。一般原始数据为3个字段：客户ID、购买时间、购买金额，用数据挖掘软件处理，加权（考虑权重）得到RFM得分，对得分排... 阅读全文
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正好刚帮某电信行业完成一个数据挖掘工作，其中的RFM模型还是有一定代表性，就再把数据挖掘RFM模型的建模思路细节与大家分享一下吧！手机充值业务是一项主要电信业务形式，客户的充值行为记录正好满足RFM模型的交易数据要求。 根据美国数据库营销研究所Arthur Hughes的研究，客户数据库中有三个神奇... 阅读全文