摘要： 一个简单的例子解释随机矩阵里的MP law,################################# A example to show the MP law in random matrix theory.###############################library(ggplot2)## The empirical distributionp <- 1000n <- 2000dat <- matrix(rnorm(p*n), nrow=p)dat.cov <- cov(t(dat))dat.eig <- eigen(dat.cov)da 阅读全文

摘要： 摘自http://www.r-bloggers.com/top-250-movies-at-imdb/################################## 250 IMDb movies, visualize the rating and votes################################## We will use the XML library to retrieve the page from IMDb and parse out the appropriate table.library(XML)url <- "http://ww 阅读全文

摘要： 摘自http://www.r-bloggers.com/animated-irl-pirate-attacks-in-r/在R-blogger看到的一篇用R画.gif动态图的文章，记录下来。library(maps)library(hexbin)library(maptools)library(ggplot2)library(sp)library(mapproj)library('animation')# piRate the data from the militaRydownload.file("http://msi.nga.mil/MSISiteContent/ 阅读全文

摘要： http://www.quora.com/What-are-the-advantages-of-different-classification-algorithmshttp://stats.stackexchange.com/questions/24437/advantages-and-disadvantages-of-svmArtificial neural networks are algorithms that can be used to perform nonlinear statistical modeling and provide a new alternative to l 阅读全文

摘要： Computerworld -Whether you're new to predictive analytics or have a few projects under your belt, it's all too easy to make gaffes. "The vast majority of analytic projects are riddled with mistakes," says John Elder, CEO at data mining firm Elder Research.http://www.computerworld.c 阅读全文