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@marcelcaraciolo
marcelcaraciolo / linregr.py
Created October 28, 2011 03:43
linear regression
from numpy import loadtxt, zeros, ones, array, linspace, logspace
from pylab import scatter, show, title, xlabel, ylabel, plot, contour
#Evaluate the linear regression
def compute_cost(X, y, theta):
'''
Comput cost for linear regression
'''
#Number of training samples
@Thinkscape
Thinkscape / PSR-0-final-proposal.md
Created September 22, 2011 10:30
PSR-0 Final Proposal (PHP Standards Working Group)

PSR-0 Final Proposal (PHP Standards Working Group)

The following describes the mandatory requirements that must be adhered to for autoloader interoperability.

Mandatory:

  • A fully-qualified namespace and class must have the following structure \ <Vendor Name> \ (<Namespace>)* \ <Class Name>
  • Each namespace must have a top-level namespace ("Vendor Name").
  • Each namespace can have as many sub-namespaces as it wishes.
  • Each namespace separator is converted to a DIRECTORY_SEPARATOR when loading from the file system.
  • Each "_" character in the CLASS NAME is converted to a DIRECTORY_SEPARATOR. The "_" character has no special meaning in the namespace.
anonymous
anonymous / example2.js
Created April 29, 2011 03:37
MongoDB map reduce example 2
// suggested shell cmd line to run this:
//
// mongo --shell example2.js
//
// Note: the { out : … } parameter is for mongodb 1.8+
db.things.insert( { _id : 1, tags : ['dog', 'cat'] } );
db.things.insert( { _id : 2, tags : ['cat'] } );
db.things.insert( { _id : 3, tags : ['mouse', 'cat', 'dog'] } );
db.things.insert( { _id : 4, tags : [] } );
@FSX
FSX / async_psycopg2.py
Created March 8, 2011 22:11
A module for asynchronous PostgreSQL queries in Tornado.
#!/usr/bin/env python
__author__ = 'Frank Smit <[email protected]>'
__version__ = '0.1.0'
import functools
import psycopg2
from tornado.ioloop import IOLoop, PeriodicCallback
@joemccann
joemccann / nginx + node setup.md
Created October 25, 2010 02:06
Set up nginx as a reverse proxy to node.js.

The idea is to have nginx installed and node installed. I will extend this gist to include how to install those as well, but at the moment, the following assumes you have nginx 0.7.62 and node 0.2.3 installed on a Linux distro (I used Ubuntu).

In a nutshell,

  1. nginx is used to serve static files (css, js, images, etc.)
  2. node serves all the "dynamic" stuff.

So for example, www.foo.com request comes and your css, js, and images get served thru nginx while everything else (the request for say index.html or "/") gets served through node.

  1. nginx listens on port 80.