Vincent C Fulco vfulco

Notes from reading through R Packages by Hadley Wickham. This is meant to review, not replace, a thorough readthrough. I mainly wrote this as a personal review, since writing summaries and attempting to teach others are some of the best ways to learn things.

Introduction

Packages are used to organize code together so that it can be used repeatedly and shared with others.
A lot of work with packages is done via the devtools package.

My notes for Dokku on Digital Ocean.

These may be a bit outdated: Since I originally wrote them, I've reinstalled on a newer Dokku and may not have updated every section below.

Commands

Install dokku-cli (gem install dokku-cli) for a more Heroku-like CLI experience (dokku config:set FOO=bar).

# List/run commands when not on Dokku server (assuming a "henroku" ~/.ssh/config alias)

ssh henroku dokku

##Ubuntu Server

NodeJS

sudo apt-get install g++ curl libssl-dev apache2-utils git-core make
cd /usr/local/src
wget http://nodejs.org/dist/v0.10.28/node-v0.10.28.tar.gz
tar -xvzf node-v0.10.28.tar.gz
cd node-v0.10.28

Trello

Running Dokku on DigitalOcean

Notes on spinning up a new dokku server on DO. Inspired by this blog post by Bryan Kennedy.

	## assuming you have a folder full of .csv's to merge
	## csv's must all have identical column names.

	folder <- "./path/to/csv/files"
	filenames <- list.files(folder)

	all_files <- Reduce(rbind, lapply(filenames, read.csv))

	# Composition of the containers

	owncloud:
	image: owncloud
	ports:
	- 80:80
	volumes_from:
	- owncloud-data
	links:
	- postgres:owncloud-db

	# preliminaries
	from pymongo import MongoClient
	from nltk.corpus import stopwords
	from string import ascii_lowercase
	import pandas as pd
	import gensim, os, re, pymongo, itertools, nltk, snowballstemmer

	# set the location where we'll save our model
	savefolder = '/data'

	#!/usr/bin/python

	import boto, argparse

	parser = argparse.ArgumentParser()
	parser.add_argument('-b','--bucket', help='Name of your S3 Bucket', required=True)
	parser.add_argument('-o','--object', help='Name of the object + prefix in your bucket', required=True)
	parser.add_argument('-t','--time', type=int, help='Expirery in seconds Default = 60', default=60)
	args = vars(parser.parse_args())

	# This script is modified by Jason Bryer ([email protected]) from Huidong Tian's
	# original script. The blog post describing the method is here:
	# http://withr.me/authentication-of-shiny-server-application-using-a-simple-method/
	# The original R script is located here: https://gist.github.com/withr/9001831
	#
	# This script adds two new features: 1. Render a logout button, and 2. provide
	# the ability for visitors to create a new account.
	#
	# Within your server.R file, be sure to use:
	#