.RProfile

# Sample profile file
# Taken from https://www.r-bloggers.com/fun-with-rprofile-and-customizing-r-startup/
# set local CRAN mirror here - commented out since we don't currently use one
#local({r <- getOption("repos")
#      r["CRAN"] <- "http://cran.revolutionanalytics.com"
#      options(repos=r)})
 
# keeping this option TRUE causes problems
options(stringsAsFactors=FALSE)
options(max.print=10000)
 
# Setting ‘scipen=10’ effectively forces R to never use scientific notation to express very small or large numbers.
options(scipen=10)
options(show.signif.stars=FALSE)
 
# default editor
options(editor="vim")
 
# hide significant stars
options(show.signif.stars=FALSE)
 
# prevent TK from loading
options(menu.graphics=FALSE)
 
# same prompt as Python REPL
options(prompt="> ")
options(continue="... ")
options(width = 120)
 
# default to quit w/o saving workspace
q <- function (save="no", ...) {
  quit(save=save, ...)
}
 
# This snippet allows you to tab-complete package names for use in “library()” or “require()” calls
utils::rc.settings(ipck=TRUE)
 
# prefix history file with timestamp at start
.First <- function(){
  if(interactive()){
    library(utils)
    timestamp(,prefix=paste("##------ [",getwd(),"] ",sep=""))
  }
}
 
# write all commands to history file at exit
.Last <- function(){
  if(interactive()){
    hist_file <- Sys.getenv("R_HISTFILE")
    if(hist_file=="") hist_file <- "~/.RHistory"
    savehistory(hist_file)
  }
}
 
# Enables the colorized output from R. Need to install "colorout" before uncommenting
#if(Sys.getenv("TERM") == "xterm-256color")
#  library("colorout")
 
# Loads a library into the namespace without any warning or startup messages
sshhh <- function(a.package){
  suppressWarnings(suppressPackageStartupMessages(
    library(a.package, character.only=TRUE)))
}
 
# list of packages you want autoloaded - commented but add your own and then uncomment "if" statement
#auto.loads <-c("ggplot2")
 
#if(interactive()){
#  invisible(sapply(auto.loads, sshhh))
#}
 
# ipak: install and load multiple R packages.
# check to see if packages are installed. Install them if they are not, then load them into the R session.
# Since we are installing via brew and there are no issues with permission, it makes sense to install the packages
# in the R system library. We provide a specific link to the system library directory, in the "install.packages"
# command, but it is likely to be different and change on upgrade.
ipak <- function(pkg){
    new.pkg <- pkg[!(pkg %in% installed.packages()[, "Package"])]
    if (length(new.pkg))
        install.packages(new.pkg, lib="/usr/local/R/site-library", dependencies = TRUE)
    sapply(pkg, require, character.only = TRUE)
}
 
# hidden namespace that rm doesn't erase
.env <- new.env()
attach(.env)
 
# remove any row names a data.frame might have
.env$unrowname <- function(x) {
  rownames(x) <- NULL
  x
}
 
# sanely undo a “factor()” cal
.env$unfactor <- function(df){
  id <- sapply(df, is.factor)
  df[id] <- lapply(df[id], as.character)
  df
}
# set package libraries
paths <- c("/usr/local/R/site-library","~/R/library")
.libPaths(paths)
 
message("n*** Successfully loaded .Rprofile ***n")