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garywu / frequency_estimator.py
Created March 17, 2017 02:12 — forked from endolith/frequency_estimator.py
Frequency estimation methods in Python
from __future__ import division
from numpy.fft import rfft
from numpy import argmax, mean, diff, log
from matplotlib.mlab import find
from scipy.signal import blackmanharris, fftconvolve
from time import time
import sys
try:
import soundfile as sf
except ImportError:
@garywu
garywu / pg-pong.py
Created February 6, 2017 13:23 — forked from karpathy/pg-pong.py
Training a Neural Network ATARI Pong agent with Policy Gradients from raw pixels
""" Trains an agent with (stochastic) Policy Gradients on Pong. Uses OpenAI Gym. """
import numpy as np
import cPickle as pickle
import gym
# hyperparameters
H = 200 # number of hidden layer neurons
batch_size = 10 # every how many episodes to do a param update?
learning_rate = 1e-4
gamma = 0.99 # discount factor for reward
<?php
function cidr_match($ip, $ranges)
{
$ranges = (array)$ranges;
foreach($ranges as $range) {
list($subnet, $mask) = explode('/', $range);
if((ip2long($ip) & ~((1 << (32 - $mask)) - 1)) == ip2long($subnet)) {
return true;
}
}
---
# ^^^ YAML documents must begin with the document separator "---"
#
#### Example docblock, I like to put a descriptive comment at the top of my
#### playbooks.
#
# Overview: Playbook to bootstrap a new host for configuration management.
# Applies to: production
# Description:
# Ensures that a host is configured for management with Ansible.
@garywu
garywu / 0_reuse_code.js
Created January 11, 2014 18:54
Here are some things you can do with Gists in GistBox.
// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console
// Chrome extension 'content scripts' run in a sandboxed 'isolated world'
// (http://code.google.com/chrome/extensions/content_scripts.html#execution-environment).
// However, there are ways to get out and execute js code in the page
// context. Google searching revealed the following ways:
////////////////////////////////////////////////////////////////////////////////
// http://blog.afterthedeadline.com/2010/05/14/how-to-jump-through-hoops-and-make-a-chrome-extension/
// it looks like jQuery must be loaded by the content-script
jQuery('body').append('<script type="text/javascript">(function(l) {
var res = document.createElement('SCRIPT');

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