History

May, 2015
May 5 – Bolding plotting characters
July, 2013
July 20 – Introduction to R Programming videos
February, 2013
Feb 9 – fix
April, 2012
Apr 19 – rasterImage
Apr 6 – browser
Apr 2 – traceback
March, 2012
Mar 30 – edaPlot (openintro package)
Mar 29 – readPNG (png package)
Mar 28 – findFn (sos package)
Mar 27 – getReturns (stockPortfolio package)
Mar 26 – map (maps package)
Mar 25 – xtable (xtable package)
Mar 24 – tar, untar
Mar 23 – dir.create
Mar 22 – all.equal
Mar 21 – exists
Mar 20 – zapsmall
Mar 19 – sub, gsub
Mar 18 – next
Mar 17 – installed.packages
Mar 16 – by
Mar 15 – split.screen, screen
Mar 14 – Rprof
Mar 13 – sprintf
Mar 12 – lapply (with website scraping example)
Mar 11 – unlist
Mar 10 – download.file
Mar 9 – with, within
Mar 8 – par(cex.axis, cex.lab, cex.main, cex.sub)
Mar 7 – message
Mar 6 – Clear the console screen
Mar 5 – get
Mar 4 – xor, isTRUE
Mar 3 – append
Mar 2 – legend
Mar 1 – twListToDF (twitteR package)
February, 2012
Feb 29 – searchTwitter (twitteR package)
Feb 28 – userTimeline (twitteR package)
Feb 27 – publicTimeline (twitteR package)
Feb 26 – as.Date, strptime
Feb 25 – cat
Feb 24 – getForm, postForm (RCurl package)
Feb 23 – rgb
Feb 22 – getURL, getURLContent (RCurl package)
Feb 21 – regexpr, gregexpr
Feb 20 – substr, substring
Feb 19 – %%, %/% operators
Feb 18 – %in%
Feb 17 – on.exit
Feb 16 – .Last.value
Feb 15 – layout, par(mfrow)
Feb 14 – strsplit
Feb 13 – grep
Feb 12 – read.delim, write.table
Feb 11 – Character alignment (coding tip)
Feb 10 – warning, stop
Feb 9 – object.size
Feb 8 – par(mar, mgp, las)
Feb 7 – any, all
Feb 6 – alarm
Feb 5 – xtable
Feb 4 – system
Feb 3 – debug, undebug
Feb 2 – list.files
Feb 1 – prompt
January, 2012
Jan 31 – getwd, setwd
Jan 30 – package.skeleton
Jan 29 – match
Jan 28 – aperm
Jan 27 – TRUE and FALSE, not T and F
Jan 26 – cov2cor
Jan 25 – pdf, png, dev.off
Jan 24 – invisible
Jan 23 – class, typeof
Jan 22 – example
Jan 21 – format
Jan 20 – head, tail
Jan 19 – merge
Jan 18 – smoothScatter
Jan 17 – missing
Jan 16 – ifelse
Jan 15 – colSums, rowSums, colMeans, rowMeans
Jan 14 – apply
Jan 13 – txtProgressBar, setTxtProgressBar
Jan 12 – save, save.image, load
Jan 11 – rug
Jan 10 – Recall
Jan 9 – identical
Jan 8 – Sys.sleep, Sys.time
Jan 7 – array
Jan 6 – offset, I
Jan 5 – citation
Jan 4 – par(char)
Jan 3 – function(…) – function ellipsis
Jan 2 – set.seed
Jan 1 – system.time

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