Jason Bryer jbryer
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| # .Rprofile -- commands in this file will be executed at the beginning of | |
| # each R session. On Windows, the R_PROFILE environment variable must have value | |
| # with the full path to this file. On Linux (or other Unix like systems) this file | |
| # must be in the user's home directory. | |
| # Set the default repository to the main CRAN site | |
| options(repos=c(CRAN='http://cran.r-project.org')) | |
| # Set the oDrive varaible and library path | |
| if(Sys.info()['sysname'] == 'Windows') { |
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| #List of most used R packages that we wish to install. | |
| libraries = c('cacheSweave', 'Deducer', 'devtools', 'doBy', 'foreign', 'gdata', | |
| 'ggplot2', 'Hmisc', 'JGR', 'lubridate', 'maps', 'mapdata', 'mapproj', | |
| 'maptools', 'proto', 'psych', 'R2wd', 'RCurl', 'reshape', | |
| 'RODBC', 'roxygen2', 'seqinr', 'sm', 'sp', 'sqldf', 'survey', | |
| 'WriteXLS', 'XML', 'xtable') | |
| #We will install packages from the main CRAN site | |
| repos = 'http://cran.r-project.org' | |
| #Site provides some prebuilt binaries for Windows |
jbryer
/ BirthdayProblem.R
Created
January 31, 2012 20:29
Given a room with n people in it, what is the probability any two will have the same birthday?
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| ## 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) ) |
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| #' 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
/ RBloggers.R
Created
January 13, 2012 15:14
Retrieving and Analyzing R-Bloggers using the Google Reader API
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| 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
/ GoogleReader.R
Created
January 13, 2012 14:46
Function to return an RSS feed using the (unofficial) Google Reader API
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| 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. |
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| .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', |
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