Using Python's built-in defaultdict we can easily define a tree data structure:
def tree(): return defaultdict(tree)
That's it!
#!/usr/bin/env bash | |
# memusg -- Measure memory usage of processes | |
# Usage: memusg COMMAND [ARGS]... | |
# | |
# Author: Jaeho Shin <[email protected]> | |
# Created: 2010-08-16 | |
############################################################################ | |
# Copyright 2010 Jaeho Shin. # | |
# # | |
# Licensed under the Apache License, Version 2.0 (the "License"); # |
#!/usr/bin/env python | |
import subprocess, os, glob | |
## Rename wav files using frequency and pitch detection: | |
## GTR_08.wav ---> automated pitch detection & file renaming ---> C - 130.81 Hz - GTR_08.wav | |
WAV_DIR = r"C:/Conversion" | |
AUBIO_DIR = r"C:/Conversion" |
Using Python's built-in defaultdict we can easily define a tree data structure:
def tree(): return defaultdict(tree)
That's it!
Latency Comparison Numbers (~2012) | |
---------------------------------- | |
L1 cache reference 0.5 ns | |
Branch mispredict 5 ns | |
L2 cache reference 7 ns 14x L1 cache | |
Mutex lock/unlock 25 ns | |
Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
Compress 1K bytes with Zippy 3,000 ns 3 us | |
Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |
from numpy import * | |
from scipy.stats import beta | |
class BetaBandit(object): | |
def __init__(self, num_options=2, prior=(1.0,1.0)): | |
self.trials = zeros(shape=(num_options,), dtype=int) | |
self.successes = zeros(shape=(num_options,), dtype=int) | |
self.num_options = num_options | |
self.prior = prior |
So much code.
<script type="text/javascript"> | |
(function () { | |
"use strict"; | |
// once cached, the css file is stored on the client forever unless | |
// the URL below is changed. Any change will invalidate the cache | |
var css_href = './index_files/web-fonts.css'; | |
// a simple event handler wrapper | |
function on(el, ev, callback) { | |
if (el.addEventListener) { | |
el.addEventListener(ev, callback, false); |
curl --connect-timeout 15 -v --insecure "smtp://smtp.example.com:25" -u "username:password" | |
\ --mail-from "[email protected]" --mail-rcpt "[email protected]" | |
\ -T email-contents.txt --ssl |
/* bling.js */ | |
window.$ = document.querySelector.bind(document); | |
window.$$ = document.querySelectorAll.bind(document); | |
Node.prototype.on = window.on = function(name, fn) { this.addEventListener(name, fn); }; | |
NodeList.prototype.__proto__ = Array.prototype; | |
NodeList.prototype.on = function(name, fn) { this.forEach((elem) => elem.on(name, fn)); }; |