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@stucchio
stucchio / bayesian_ab_test.py
Last active April 2, 2023 03:17
Bayesian A/B test code
from matplotlib import use
from pylab import *
from scipy.stats import beta, norm, uniform
from random import random
from numpy import *
import numpy as np
import os
# Input data
@troelskn
troelskn / link_user.html.erb
Last active November 13, 2017 11:06
Extend http://railscasts.com/episodes/235-devise-and-omniauth-revised to support scenario where a user first creates account without Facebook login, then later authenticates with Facebook.
@neilsarkar
neilsarkar / gist:5092118
Last active December 14, 2015 13:18
Happy Path for Splits
# user.rb
class User < ActiveRecord::Base
# create a balanced account for each new user
before_create :create_balanced_account
# credit_card_uri and bank_account_uri are tokenized client side
# in webviews using balanced.js
attr_accessible :account_uri,
:credit_card_uri,
@fnichol
fnichol / README.md
Created March 12, 2011 20:52
Download a cacert.pem for RailsInstaller

Why?

There is a long standing issue in Ruby where the net/http library by default does not check the validity of an SSL certificate during a TLS handshake. Rather than deal with the underlying problem (a missing certificate authority, a self-signed certificate, etc.) one tends to see bad hacks everywhere. This can lead to problems down the road.

From what I can see the OpenSSL library that Rails Installer delivers has no certificate authorities defined. So, let's go fetch some from the curl website. And since this is for ruby, why don't we download and install the file with a ruby script?

Installation

The Ruby Way! (Fun)

@Burgestrand
Burgestrand / download-progress.rb
Created June 27, 2010 13:55
Ruby HTTP file download with progress measurement
require 'net/http'
require 'uri'
def download(url)
Thread.new do
thread = Thread.current
body = thread[:body] = []
url = URI.parse url
Net::HTTP.new(url.host, url.port).request_get(url.path) do |response|