jbryer

## See http://en.wikipedia.org/wiki/Birthday_problem for an explanation  of the problem
require(ggplot2)
require(reshape)

theme_update(panel.background=theme_blank(), 
			 panel.grid.major=theme_blank(), 
			 panel.border=theme_blank())

birthday <- function(n) { 
	1 - exp( - n^2 / (2 * 365) )

jbryer

#' Constructor
EmailClass <- function(name, email) {
	nc = list(
		name = name,
		email = email,
		get = function(x) nc[[x]],
		set = function(x, value) nc[[x]] <<- value,
		props = list(),
		history = list(),
		getHistory = function() return(nc$history),

jbryer

source('https://raw.github.com/gist/1606595/269d61dfcc7930f5275a212e11f3c43771ab2591/GoogleReader.R')

rbloggers = getRSSFeed(feedURL="http://r-bloggers.com/feed",
			   email="GOOGLE READER EMAIL",
			   passwd="GOOGLE READER PASSWORD",
			   posts=5000)
entries = rbloggers[which(names(rbloggers) == "entry")]
length(entries)
saveXML(rbloggers, file='rbloggers.xml')

jbryer

require(XML)
require(RCurl)

#' This function ruturns an XML tree of the RSS feed from the given URL.
#'
#' This function utilizes the (unofficial) Google Reader API to retrieve RSS
#' feeds. The advantage of access RSS feeds through the Google Reader API is that
#' you are not limited by the number of entries a website may included in their
#' feed. That is, Google maintains generally maintains a complete history of
#' entries from the RSS feed. 

jbryer

.libPaths() #By default, R will install packages to the first element

#This script will install some very common R packages.
repos = 'http://cran.r-project.org' #Main CRAN
repos.win = 'http://www.stats.ox.ac.uk/pub/RWin' #Site provides some prebuilt binaries for Windows
repos.rforge = 'http://r-forge.r-project.org'

libraries = c('Deducer', 'devtools', 'doBy', 'foreign', 'gdata', 'ggplot2', 'gmaps', 
	'Hmisc', 'JGR', 'maps', 'mapdata', 'mapproj', 'maptools', 'proto', 'psych', 'R2wd',
	'Rcmdr', 'RCurl', 'reshape', 'RODBC', 'roxygen2', 'seqinr', 'sm', 'sp',