dannguyen

#!/usr/bin/env ruby
require 'pathname'
rel_path = Pathname.new( ARGV.shift || './')
working_abs_path = Pathname.new(ARGV.shift || './')
working_abs_path = working_abs_path.join(rel_path)
working_abs_path.mkpath
sleep_sec = (ARGV.shift || 2).to_i

puts "---------------", "Sleep delay: #{sleep_sec}"
puts "Files will be stored in: \t#{working_abs_path}"

dannguyen

update crimes set formatted_date = (STR_TO_DATE(`Date`, '%m/%d/%Y %h:%i:%S %p')) where `Date` IS NOT NULL

dannguyen

Hello this is an image

dannguyen

Hello this is an image

dannguyen

# data-journalism-homework-grading-bot-w-anti-grade-inflation-measures
###### PROTOTYPE

Dir.glob("*").select{|d| File.directory?d }.each do |dir|
  `cd #{dir} && git pull`
  if $?.success?
    if File.exist?('homework.txt')
      hw = open('homework.txt').read
      if hw.length < 10000
        puts 'F'

dannguyen

# corn.stanford.edu is stuck at Ruby 1.9.3
# This script gets the newest Ruby and lets you install your own gems without sudo

# get rbenv
git clone https://github.com/sstephenson/rbenv.git ~/.rbenv

echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bashrc
echo 'eval "$(rbenv init -)"' >> ~/.bashrc
# run the updated .bashrc
source ~/.bashrc

dannguyen

require 'nokogiri'
f = './CA counties.kml'
xml = open(f){|x| Nokogiri::XML(x.read) }
placemarks = xml.search('Placemark')

atts = placemarks.first.search('ExtendedData > SchemaData').children.map{|t| t.attr('name') }.compact

headers = atts + ['geometry']
require 'csv'
CSV.open('./ca-counties.csv', 'w', headers: true) do |csv|

dannguyen

Say you, say me; say it for always
That's the way it should be
Say you, say me; say it together
Naturally

I had a dream I had an awesome dream
People in the park playing games in the dark
And what they played was a masquerade
And from behind of walls of doubt a voice was crying out

dannguyen

Installing rbenv https://github.com/sstephenson/rbenv

git clone https://github.com/sstephenson/rbenv.git ~/.rbenv
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bashrc
echo 'eval "$(rbenv init -)"' >> ~/.bashrc
source ~/.bashrc

dannguyen

# Ruby version of http://machinelearningmastery.com/naive-bayes-classifier-scratch-python/

FILENAME="/tmp/pima.csv"
require 'csv'

data = CSV.open(FILENAME){|csv| csv.readlines.map{|arr| arr.map(&:to_f) }  }

def split_dataset(dataset, ratio)
  i = (ratio * dataset.length).to_i
  copy = dataset.shuffle