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http://www.jstatsoft.org/v40/i13/ 阅读全文
posted @ 2011-12-01 19:49
lexus
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摘要:
http://www.jstatsoft.org/v40/i13/ 阅读全文
posted @ 2011-12-01 19:49
lexus
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http://www.inside-r.org/packages/cran/textir/docs/tfidfA Community Site for R – Sponsored by Revolution Analytics 阅读全文
posted @ 2011-12-01 19:44
lexus
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http://www.inside-r.org/packages/cran/textir/docs/tfidf 阅读全文
posted @ 2011-12-01 19:29
lexus
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http://www.inside-r.org/packages/cran/textir/docs/tfidf 阅读全文
posted @ 2011-12-01 19:29
lexus
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install.packages('lsa',dependencies=T)library(lsa)m1<-c(1,2,1,0)m2<-c(1,1,1,0)cosine(m1,m2)有了这个包计算相关性就简单了http://cran.r-project.org/web/packages/lsa/index.htmlproblem:http://stackoverflow.com/questions... 阅读全文
posted @ 2011-12-01 19:24
lexus
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install.packages('lsa',dependencies=T)library(lsa)m1<-c(1,2,1,0)m2<-c(1,1,1,0)cosine(m1,m2)http://cran.r-project.org/web/packages/lsa/index.htmlproblem:http://stackoverflow.com/questions/7129303/cant-... 阅读全文
posted @ 2011-12-01 19:22
lexus
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install.packages('lsa',dependencies=T)library(lsa)m1<-c(1,2,1,0)m2<-c(1,1,1,0)cosine(m1,m2)http://cran.r-project.org/web/packages/lsa/index.htmlproblem:http://stackoverflow.com/questions/7129303/cant-... 阅读全文
posted @ 2011-12-01 19:21
lexus
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How do you clear the R console in OS X (or Ubuntu)http://stackoverflow.com/questions/4102717/how-do-you-clear-the-r-console-in-os-x-or-ubuntuctrl+lhttp://bbs.sciencenet.cn/home.php?mod=space&uid=81938... 阅读全文
posted @ 2011-12-01 19:14
lexus
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http://cran.r-project.org/web/packages/lsa/index.htmlproblem:http://stackoverflow.com/questions/7129303/cant-install-rjava-0-9-on-ubuntu-10-044down voteacceptedDah, not long after posting I found the ... 阅读全文
posted @ 2011-12-01 19:08
lexus
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problem:http://stackoverflow.com/questions/7129303/cant-install-rjava-0-9-on-ubuntu-10-04 阅读全文
posted @ 2011-12-01 19:03
lexus
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problem:http://stackoverflow.com/questions/7129303/cant-install-rjava-0-9-on-ubuntu-10-04 阅读全文
posted @ 2011-12-01 19:03
lexus
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对于10.04 lts 需要添加源参考http://groups.google.com/group/ec2ubuntu/browse_thread/thread/3a331c76c1df90dc?pli=1debhttp://archive.canonical.com/ubuntulucid partner以下对于9.xupdate-alternatives error no alternativ... 阅读全文
posted @ 2011-12-01 18:57
lexus
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http://www.miislita.com/information-retrieval-tutorial/cosine-similarity-tutorial.htmlMi IslitaTutorials on SVD & LSIHands-on how-to calculations on Singular Value Decomposition (SVD) and Latent Seman... 阅读全文
posted @ 2011-12-01 16:15
lexus
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http://www.miislita.com/information-retrieval-tutorial/cosine-similarity-tutorial.htmlMi IslitaTutorials on SVD & LSIHands-on how-to calculations on Singular Value Decomposition (SVD) and Latent Seman... 阅读全文
posted @ 2011-12-01 16:15
lexus
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Ubuntu 32-bit, 32-bit PAE, 64-bit Kernel Benchmarkshttp://www.phoronix.com/scan.php?page=article&item=ubuntu_32_pae&num=1EnablingPAEContentsWhat is PAE?How to Enable PAE Ubuntu 10.04 LTS (Lucid Lynx)U... 阅读全文
posted @ 2011-12-01 16:00
lexus
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http://www.statsoft.com/textbook/basic-statistics/ 阅读全文
posted @ 2011-12-01 15:23
lexus
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cosine {lsa}R DocumentationCosine Measure (Matrices)DescriptionCalculates the cosine measure between two vectors or between all column vectors of a matrix.Usagecosine(x, y = NULL)
ArgumentsxA vector o... 阅读全文
posted @ 2011-12-01 15:22
lexus
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向量化与并行计算应用场景决定知识的储备与工具的选择,反过来,无论你选择了什么样的工具,你一定会努力地把它改造成符合自己应用场景所需的那个样子。从这个道理来说,我选择了R作为数据挖掘人员手中攻城陷池的那把云梯,并努力地把它改造成自己希望的那个样子。我最初接触到专门用于科学计算的工具,是大名鼎鼎的matlab,正如它帮助了无数中国学生顺利毕业的赫赫功劳一样,它是我对于向量化计算的启蒙老师。用过matl... 阅读全文
posted @ 2011-12-01 14:23
lexus
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向量化与并行计算应用场景决定知识的储备与工具的选择,反过来,无论你选择了什么样的工具,你一定会努力地把它改造成符合自己应用场景所需的那个样子。从这个道理来说,我选择了R作为数据挖掘人员手中攻城陷池的那把云梯,并努力地把它改造成自己希望的那个样子。我最初接触到专门用于科学计算的工具,是大名鼎鼎的matlab,正如它帮助了无数中国学生顺利毕业的赫赫功劳一样,它是我对于向量化计算的启蒙老师。用过matl... 阅读全文
posted @ 2011-12-01 14:23
lexus
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http://google-styleguide.googlecode.com/svn/trunk/google-r-style.htmlgoogle的R语言规范 阅读全文
posted @ 2011-12-01 13:48
lexus
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