nicolewhite

Markov Chains

A while back I wrote a blog post explaining Markov chains and demonstrating different ways of finding their steady-state distribution in R. Now, I want to play with Markov chains as a graph. I’m going to pull examples from around the internet and answer the same questions in Cypher as the authors do with matrices. This gives me the opportunity to explore more advanced Cypher queries while working with a topic I enjoy very much (stochastic processes and Markov chains). So this is officially just for funsies.

I found three Markov chains online that I’m going to showcase, and they involve the following topics:

hijonathan

<!-- Jinja Unique ID Generator -->

{% macro random_int(len) -%}
  {% for n in range(len) %}
    {{ [0,1,2,3,4,5,6,7,8,9]|random }}
  {% endfor %}
{%- endmacro %}

{% macro unique_id(count_groups=5, group_len=6, separator='-') -%}
  {% set parts %}

apolloclark

Postgres Cheatsheet

This is a collection of the most common commands I run while administering Postgres databases. The variables shown between the open and closed tags, "<" and ">", should be replaced with a name you choose. Postgres has multiple shortcut functions, starting with a forward slash, "". Any SQL command that is not a shortcut, must end with a semicolon, ";". You can use the keyboard UP and DOWN keys to scroll the history of previous commands you've run.

Setup

installation, Ubuntu

http://www.postgresql.org/download/linux/ubuntu/ https://help.ubuntu.com/community/PostgreSQL

JenkinsDev

from random import randint, random
from math import floor

def fisher_yates_shuffle(the_list):
    list_range = range(0, len(the_list))
    for i in list_range:
        j = randint(list_range[0], list_range[-1])
        the_list[i], the_list[j] = the_list[j], the_list[i]
    return the_list

heyalexej

#!/usr/bin/python
# -*- coding: utf-8 -*-

i = ['headline one',
     'headline two',
     'headline three']

j = ['first line one',
     'first line two',
     'first line three']

grugq

Simple Security Guidelines

Using an iDevice? (Best option)

• Use an iPod or an iPad without a SIM card
• Use an iPhone
• Do not jailbreak
• Always upgrade to new iOS versions
• Use Brave browser

Need Secure chat?

heyalexej

jQuery(document).ready(function() {
    var originalTitle = document.getElementsByTagName("title")[0].innerHTML;
    jQuery(window).on("blur", function() {
        timerId = setTimeout(function() {
            document.getElementsByTagName("title")[0].innerHTML = "(1) " + originalTitle;
        }
        , 2000);
    }
    );
    jQuery(window).on("focus", function() {

bnagy

GPG / Mutt / Gmail

About

This is a collection of snippets, not a comprehensive guide. I suggest you start with Operational PGP.

Here is an incomplete list of things that are different from other approaches:

• I don't use keyservers. Ever.
• Yes, I use Gmail instead of some bespoke hipster freedom service

heyalexej

#!/usr/bin/env python2
# -*- coding: utf-8 -*-
""" fuzzing accessible urls.

>>> import random, string
>>> ld = string.letters+string.digits
>>> ld
'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'
>>> len(ld)
62

stvhwrd

The best way to download a website for offline use, using wget

There are two ways - the first way is just one command run plainly in front of you; the second one runs in the background and in a different instance so you can get out of your ssh session and it will continue.

First make a folder to download the websites to and begin your downloading: (note if downloading www.SOME_WEBSITE.com, you will get a folder like this: /websitedl/www.SOME_WEBSITE.com/)

STEP 1: