halpo

# Makefile for generating R packages.
# 2011 Andrew Redd
#
# Assumes Makefile is in a folder where package contents are in a subfolder pkg.
# Roxygen uses the roxygen2 package, and will run automatically on check and all.

PKG_VERSION=$(shell grep -i ^version pkg/DESCRIPTION | cut -d : -d \  -f 2)
PKG_NAME=$(shell grep -i ^package pkg/DESCRIPTION | cut -d : -d \  -f 2)

R_FILES := $(wildcard pkg/R/*.R)

CristinaSolana

1. Clone your fork:

git clone git@github.com:YOUR-USERNAME/YOUR-FORKED-REPO.git

2. Add remote from original repository in your forked repository:

cd into/cloned/fork-repo
git remote add upstream git://github.com/ORIGINAL-DEV-USERNAME/REPO-YOU-FORKED-FROM.git
git fetch upstream

trey

Creating a Happy Git Environment on OS X

Step 1: Install Git

brew install git bash-completion

Configure things:

git config --global user.name "Your Name"

git config --global user.email "you@example.com"

rdabbler

#
# Get appraised value of car from Edmunds.com using the developer API with R
# Reference: http://developer.edmunds.com/docs/read/The_Vehicle_API
#

# set working dir
setwd('~/R/carvalue')

#load libraries
library(RJSONIO)

nachocab

# download docx2txt by Sandeep Kumar
wget -O docx2txt.pl http://www.cs.indiana.edu/~kinzler/home/binp/docx2txt

# make a wrapper 
echo '#!/bin/bash
docx2txt.pl $1 -' > docx2txt
chmod +x docx2txt

# make sure docx2txt.pl and docx2txt are your current PATH. Here's a guide
http://shapeshed.com/using_custom_shell_scripts_on_osx_or_linux/

hrbrmstr

notify <- function(msg="Operation complete") {

  in.osx <- (Sys.info()['sysname'] == "Darwin")
  in.rstudio <- (Sys.getenv("RSTUDIO") == "1")
  in.rgui <- (Sys.getenv("R_GUI_APP_REVISION") != "")
  
  if (in.rstudio) { # hack to see if running in RStudio
    title <- "RStudio"
    sender <- activate <- "org.rstudio.RStudio"
  }

ateucher

require(ggplot2)

set.seed(42)

df <- data.frame(x=1:50, y=rnorm(50, 10, 2), int=rbinom(50,1,0.3))

ggplot(df, aes(x=x, y=y)) +
  geom_ribbon(aes(ymin=0, ymax=y, fill='#1E90FF'), alpha=0.3) +
  geom_abline(intercept=10, slope=-0.1
              , aes(colour='Linear')) +

lelandbatey

Description

This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"

Results

ecasilla

##
# Creates an alias called "git hist" that outputs a nicely formatted git log.
# Usage is just like "git log"
# Examples:
#   git hist
#   git hist -5
#   git hist <branch_name>
#   git hist <tag_name> -10
##
git config --global alias.hist "log --pretty=format:'%C(yellow)[%ad]%C(reset) %C(green)[%h]%C(reset) | %C(red)%s %C(bold red){{%an}}%C(reset) %C(blue)%d%C(reset)' --graph --date=short"

Kartones

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)