以下是我的想法:

.First <- function () {
  options(device="quartz")
}

.Last <- function () {
  if (!any(commandArgs() == '--no-readline') && interactive()) {
    require(utils)
    try(savehistory(Sys.getenv("R_HISTFILE")))
  }
}

# Slightly more flexible than as.Date
# my.as.Date("2009-01-01") == my.as.Date(2009, 1, 1) == as.Date("2009-01-01")
my.as.Date <- function (a, b=NULL, c=NULL, ...) {
  if (class(a) != "character")
    return (as.Date(sprintf("%d-%02d-%02d", a, b, c)))
  else
    return (as.Date(a))
}

# Some useful aliases
cd <- setwd
pwd <- getwd
lss <- dir
asd <- my.as.Date # examples: asd("2009-01-01") == asd(2009, 1, 1) == as.Date("2009-01-01")
last <- function (x, n=1, ...) tail(x, n=n, ...)

# Set proxy for all web requests
Sys.setenv(http_proxy="http://192.168.0.200:80/")

# Search RPATH for file <fn>.  If found, return full path to it
search.path <- function(fn,
     paths = strsplit(chartr("\\", "/", Sys.getenv("RPATH")), split =
                switch(.Platform$OS.type, windows = ";", ":"))[[1]]) {
  for(d in paths)
     if (file.exists(f <- file.path(d, fn)))
        return(f)
  return(NULL)
}

# If loading in an environment that doesn't respect my RPATH environment
# variable, set it here
if (Sys.getenv("RPATH") == "") {
  Sys.setenv(RPATH=file.path(path.expand("~"), "Library", "R", "source"))
}

# Load commonly used functions
if (interactive())
  source(search.path("afazio.r"))

# If no R_HISTFILE environment variable, set default
if (Sys.getenv("R_HISTFILE") == "") {
  Sys.setenv(R_HISTFILE=file.path("~", ".Rhistory"))
}

# Override q() to not save by default.
# Same as saying q("no")
q <- function (save="no", ...) {
  quit(save=save, ...)
}

# ---------- My Environments ----------
#
# Rather than starting R from within different directories, I prefer to
# switch my "environment" easily with these functions.  An "environment" is
# simply a directory that contains analysis of a particular topic.
# Example usage:
# > load.env("markets")  # Load US equity markets analysis environment
# > # ... edit some .r files in my environment
# > reload()             # Re-source .r/.R files in my environment
#
# On next startup of R, I will automatically be placed into the last
# environment I entered

# My current environment
.curr.env = NULL

# File contains name of the last environment I entered
.last.env.file = file.path(path.expand("~"), ".Rlastenv")

# Parent directory where all of my "environment"s are contained
.parent.env.dir = file.path(path.expand("~"), "Analysis")

# Create parent directory if it doesn't already exist
if (!file.exists(.parent.env.dir))
  dir.create(.parent.env.dir)

load.env <- function (string, save=TRUE) {
  # Load all .r/.R files in <.parent.env.dir>/<string>/
  cd(file.path(.parent.env.dir, string))
  for (file in lss()) {
    if (substr(file, nchar(file)-1, nchar(file)+1) %in% c(".r", ".R"))
      source(file)
  }
  .curr.env <<- string
  # Save current environment name to file
  if (save == TRUE) writeLines(.curr.env, .last.env.file)
  # Let user know environment switch was successful
  print (paste(" -- in ", string, " environment -- "))
}

# "reload" current environment.
reload <- resource <- function () {
  if (!is.null(.curr.env))
    load.env(.curr.env, save=FALSE)
  else
    print (" -- not in environment -- ")
}

# On startup, go straight to the environment I was last working in
if (interactive() && file.exists(.last.env.file)) {
  load.env(readLines(.last.env.file))
}

Stephen Turner关于. rprofiles的帖子有几个有用的别名和启动函数。

我发现自己经常使用他的“ht”和“hh”。

#ht==headtail, i.e., show the first and last 10 items of an object
ht <- function(d) rbind(head(d,10),tail(d,10))

# Show the first 5 rows and first 5 columns of a data frame or matrix
hh <- function(d) d[1:5,1:5]

我在个人资料中设置了格子颜色主题。以下是我使用的另外两个调整方法:

# Display working directory in the titlebar
# Note: This causes demo(graphics) to fail
utils::setWindowTitle(base::getwd())
utils::assignInNamespace("setwd",function(dir)   {.Internal(setwd(dir));setWindowTitle(base::getwd())},"base")

# Don't print more than 1000 lines
options(max.print=2000)

我的不太花哨:

# So the mac gui can find latex
Sys.setenv("PATH" = paste(Sys.getenv("PATH"),"/usr/texbin",sep=":"))

#Use last(x) instead of x[length(x)], works on matrices too
last <- function(x) { tail(x, n = 1) }

#For tikzDevice caching 
options( tikzMetricsDictionary='/Users/cameron/.tikzMetricsDictionary' )

下面是将表导出到LaTeX的一小段代码。它将我编写的许多报告的所有列名更改为数学模式。我的. r配置文件的其余部分是相当标准的，上面已经介绍了大部分内容。

# Puts $dollar signs in front and behind all column names col_{sub} -> $col_{sub}$

amscols<-function(x){
    colnames(x) <- paste("$", colnames(x), "$", sep = "")
    x
}

这是我的。没什么太创新的。为什么要选择特定的选项:

I went with setting a default for stringsAsFactors because I find it extremely draining to pass it as an argument each time I read a CSV in. That said, it has already caused me some minor vexation when using code written on my usual computer on a computer which did not have my .Rprofile. I'm keeping it, though, as the troubles it has caused pale in comparison to the troubles not having it set everyday used to cause. If you don't load the utils package before options(error=recover), it cannot find recover when placed inside an interactive() block. I used .db for my dropbox setting rather than options(dropbox=...) because I use it all the time inside file.path and it saves much typing. The leading . keeps it from appearing with ls().

话不多说:

if(interactive()) {
    options(stringsAsFactors=FALSE)
    options(max.print=50)
    options(repos="http://cran.mirrors.hoobly.com")
}

.db <- "~/Dropbox"
# `=` <- function(...) stop("Assignment by = disabled, use <- instead")
options(BingMapsKey="blahblahblah") # Used by taRifx.geo::geocode()

.First <- function() {
    if(interactive()) {
        require(functional)
        require(taRifx)
        require(taRifx.geo)
        require(ggplot2)
        require(foreign)
        require(R.utils)
        require(stringr)
        require(reshape2)
        require(devtools)
        require(codetools)
        require(testthat)
        require(utils)
        options(error=recover)
    }
}