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def avg_true_range(self, df): 
  ind = range(0,len(df))
  indexlist = list(ind)
  df.index = indexlist

  for index, row in df.iterrows():
    if index != 0:
      tr1 = row["High"] - row["Low"]
      tr2 = abs(row["High"] - df.iloc[index-1]["Close"])
      tr3 = abs(row["Low"] - df.iloc[index-1]["Close"])

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Base installations

sudo apt-get install blueman build-essentials calcurse chromium-browser cpufrequtils gnupg2 gparted hfsprogs imagemagick linux-tools-common lxappearance mplayer rtorrent ruby skype ubuntu-restricted-essentials urlview vagrant vim xclip

System Configurations

Lastpass

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How to configure NGINX with LetsEncrypt using the simp_le client.

this includes the nginx configs, as well as the auto renewal steps. I took a bunch of these steps from this blog, and adapted it to how I like.

simp_le issues three return codes depending on the status of the request.

• 0 if certificate data was created or updated;
• 1 if renewal not necessary;
• 2 in case of errors.

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@font-face {
  font-family: 'MyFontFamily';
  src: url('myfont-webfont.eot?') format('embedded-opentype');
}
   
@font-face {
  font-family: 'MyFontFamily';
    url(data:font/truetype;charset=utf-8;base64,BASE64_ENCODED_DATA_HERE)  format('truetype'),
    url(data:font/woff;charset=utf-8;base64,BASE64_ENCODED_DATA_HERE)  format('woff'),
    url('myfont-webfont.svg#svgFontName') format('svg');

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require "net/http"

def start_server
  # Remove the X to enable the parameters for tuning.
  # These are the default values as of Ruby 2.2.0.
  @child = spawn(<<-EOC.split.join(" "))
    XRUBY_GC_HEAP_FREE_SLOTS=4096
    XRUBY_GC_HEAP_INIT_SLOTS=10000
    XRUBY_GC_HEAP_GROWTH_FACTOR=1.8
    XRUBY_GC_HEAP_GROWTH_MAX_SLOTS=0

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#
# CORS header support
#
# One way to use this is by placing it into a file called "cors_support"
# under your Nginx configuration directory and placing the following
# statement inside your location block(s):
#
#   include cors_support;
#
# A limitation to this method is that Nginx doesn't currently send headers

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### Rails app generator template. Run it:
### rails new _app_name_ -m https://gist.githubusercontent.com/DamirSvrtan/28a28e50d639b9445bbc/raw/app_template.rb

bin_setup_file = <<-FILE
#!/bin/sh
bundle install
bundle exec rake db:setup
FILE

create_file 'bin/setup', bin_setup_file

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# Example: List of all sports of the Olympic Games
# HTML Structure:
#
# <div id="content">
#   <ul>
#     <li>
#       <a href="...">SPORT'S NAME</a>
#     </li>
#   </ul>  
# </div>

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What is your folder-structure preference for a large-scale Node.js project?

0: Starting from Rails

This is the reference point. All the other options are based off this.

|-- app
|   |-- controllers
|   |   |-- admin

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# Nginx+Unicorn best-practices congifuration guide. Heartbleed fixed.
# We use latest stable nginx with fresh **openssl**, **zlib** and **pcre** dependencies.
# Some extra handy modules to use: --with-http_stub_status_module --with-http_gzip_static_module
#
# Deployment structure
#
# SERVER:
#  /etc/init.d/nginx                             (1. nginx)
#  /home/app/public_html/app_production/current  (Capistrano directory)
#