Skip to content

Instantly share code, notes, and snippets.

Jason Bryer jbryer

Block or report user

Report or block jbryer

Hide content and notifications from this user.

Learn more about blocking users

Contact Support about this user’s behavior.

Learn more about reporting abuse

Report abuse
View GitHub Profile
@jbryer
jbryer / gitbook.R
Last active Aug 29, 2015
Functions to work with Gitbook.io and R Markdown
View gitbook.R
require(knitr)
#' Initializes a new Gitbook.
#'
#' This will initalize a new Gitbook in the given directory. When done, it will
#' also change the working directory.
#'
#' @author Jason Bryer <jason@bryer.org>
newGitbook <- function(dir) {
.Deprecated('This function has been moved to the gitbook R package. See http://jason.bryer.org/Rgitbook for more information')
View GradsByGender.R
require(ipeds)
require(ggplot2)
require(reshape2)
require(scales)
data(surveys)
View(surveys)
# Directory
ipedsHelp('HD', 2012)
@jbryer
jbryer / RPackageInstaller.R
Created Nov 23, 2011
Install basic set of R packages
View RPackageInstaller.R
.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',
@jbryer
jbryer / GoogleReader.R
Created Jan 13, 2012
Function to return an RSS feed using the (unofficial) Google Reader API
View GoogleReader.R
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
jbryer / RBloggers.R
Created Jan 13, 2012
Retrieving and Analyzing R-Bloggers using the Google Reader API
View RBloggers.R
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
jbryer / EmailClass.R
Created Jan 20, 2012
Example of object oriented programming in R
View EmailClass.R
#' 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
jbryer / BirthdayProblem.R
Created Jan 31, 2012
Given a room with n people in it, what is the probability any two will have the same birthday?
View BirthdayProblem.R
## 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
jbryer / Rprofile.R
Created Mar 7, 2012
My .Rprofile that works both on Windows and Linux
View Rprofile.R
# .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') {
@jbryer
jbryer / ggplot2Cheat.r
Created Apr 26, 2012
Graphic Parameters (symbols, line types, and colors) for ggplot2
View ggplot2Cheat.r
require(ggplot2)
require(grid)
theme_update(panel.background=theme_blank(),
panel.grid.major=theme_blank(),
panel.border=theme_blank())
#Borrowed (i.e. stollen) from http://research.stowers-institute.org/efg/R/Color/Chart/ColorChart.R
getColorHexAndDecimal <- function(color) {
if(is.na(color)) {
@jbryer
jbryer / setFunctionParams.R
Created Jul 15, 2013
Set function parameters within the global environment. Useful for debugging R functions.
View setFunctionParams.R
#' Set function parameters for debugging.
#'
#' Sets the defauls for the parameters in the given function witin an environment.
#'
#' @param fun the function whose parameters should be set.
#' @param envir the environment to set those parameters.
#' @param missing.value value to assign to parameters that do not have a defautl value.
#' @param overwrite should parameters already defined be overwritten.
setFunctionParams <- function(fun,
envir=.GlobalEnv,
You can’t perform that action at this time.