karpathy

""" 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

hadley

If you were to give recommendations to your "little brother/sister" on things that they need to do to become a data scientist, what would those things be?

I think the "Data Science Venn Diagram" (http://drewconway.com/zia/2013/3/26/the-data-science-venn-diagram) is a great place to start. You need three things to be a good data scientist:

• Statistical knowledge
• Programming/hacking skills
• Domain expertise

Statistical knowledge

Flafla2

public class Perlin {

	public int repeat;
	
	public Perlin(int repeat = -1) {
		this.repeat = repeat;
	}

	public double OctavePerlin(double x, double y, double z, int octaves, double persistence) {
		double total = 0;

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

p120ph37

#!/usr/bin/expect -f
#
# VIPAccess.exp
#
# Command-line emulation of Symantec's VIP Access software token.
# Usage:
#  ./VIPAccess.exp [v]
# If the "v" argument (or any argument) is specified, verbose output
# will be produced on stderr.  The OTP value will be output on stdout.
#

hadley

with(x, {
  f(z)
})

# Which of the following statements is this equivalent to?
#
#   a) x$f(x$z)
#   b) f(x$z)
#   c) x$f(z)
#   d) f(z)