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#Taken from http://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.norm.html
def pdf(x):
    """Normal probably distribution function."""
    return exp(-x**2/2)/sqrt(2*pi)

#Taken from http://stackoverflow.com/a/809402/600247
def erfcc(x):
    """Complementary error function."""
    z = abs(x)
    t = 1. / (1. + 0.5*z)

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sqlalchemy.create_engine(settings['db_url'], pool_recycle=14400)

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@reify
def db(self):
    def cleanup(self):
        self.db.close()
    self.add_finished_callback(cleanup)
    return self.registry.settings['sessionmaker']()

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#!/bin/sh

set -e

touch /tmp/linked
ln -s /tmp/linked . || true

cat <<EOF > Dockerfile
FROM busybox:ubuntu-14.04
ADD . /data

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array = [1, 2, 3, 4]
array.collect! do |n|
  n ** 2
end
puts array.inspect # => [1, 4, 9, 16]

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from twisted.python.failure import Failure
from autobahn.wamp import WampServerProtocol

class WampException(Exception):
    """A base class for an application exception.  Can be subclass and
    define a unique msg."""
    msg = None
    
    def __init__(self, *args):
        if len(args) == 0:

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request.response.set_cookie('my_cookie', None)
# OR
request.response.unset_cookie('my_cookie')

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{
    "query": {
        "filtered": {
            "filter": {
                "and": [
                    {
                        "term": {
                            "deleted": false
                        }
                    }, 

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(function() {

// Inspired by http://informationandvisualization.de/blog/box-plot
d3.box = function() {
  var width = 1,
      height = 1,
      duration = 0,
      domain = null,
      value = Number;
	  showLabels = true, // whether or not to show text labels

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import functools


class memoize_method:
    """
    A decorator to memoize a method.  The cache is stored as a dictionary
    inside the object.

    This functionality is similar to stdlib's :func:`functools.lru_cache`.
    When using lru_cache on a method, the object will be used as part of the