paul-english’s gists

paul-english / decision-tables.clj

Last active August 29, 2015 14:02

decision-tables.clj

	;; http://en.wikipedia.org/wiki/Decision_tables
	;; http://rosettacode.org/wiki/Decision_tables
	;; this example is ported from the pico lisp example

	(defn yes? [condition]
	(print (str (first condition) "? "))
	(flush)
	(loop [reply (read-line)]
	(cond
	(contains? #{"T" "Y" "YES" "Yes" "y" "yes" "true" "1"} reply) true

paul-english / euclid.py

Created May 28, 2014 19:42

Intro to python

	# A quick introduction to python for math students (Paul English <[email protected]>)

	################################################################################
	# Python Setup
	################################################################################

	# 1. Install python 2.7 (or 3.0, both should work well)
	# 2. Install pip
	# 3. Install numpy using the command line tool pip
	# pip intall numpy

paul-english / fools-constant.clj

Last active December 31, 2015 05:19

Calculating for fools gold

	(defn argmax [f coll] (reduce (fn [a b] (if (> (f a) (f b)) a b)) coll))
	(defn fools-constant [C N]
	(let [n (argmax #(mod % 1)
	(for [n (range 1 N)] (* C n)))]
	[n (/ n C)]))

	(fools-constant Math/PI 100)
	(fools-constant Math/E 100)

paul-english / gist:7029656

Created October 17, 2013 18:16

Angular resource doesn't bind urlParameters for

	api = $resource('http://127.0.0.1/api/v1/:type/:id',
	{
	type: '@type'
	id: '@id'
	},
	{
	get: {method: 'GET'}
	post: {method: 'POST', headers: {'Content-Type': 'application/json'}}
	del: {method: 'DELETE', headers: {'Content-Type': 'application/json'}}
	create: {method: 'POST', headers: {'Content-Type': 'application/json'}}

paul-english / analysis.r

Created July 23, 2013 23:55

	> summary(factor.train)
	ACTION RESOURCE MGR_ID ROLE_ROLLUP_1 ROLE_ROLLUP_2
	0: 1897 4675 : 839 770 : 152 117961 :21407 118300 : 4424
	1:30872 79092 : 484 2270 : 99 117902 : 742 118343 : 3945
	25993 : 409 2594 : 82 91261 : 721 118327 : 2641
	75078 : 409 1350 : 71 118315 : 498 118225 : 2547
	3853 : 404 2014 : 67 118212 : 400 118386 : 1796
	6977 : 299 16850 : 66 118290 : 398 118052 : 1665
	(Other):29925 (Other):32232 (Other): 8603 (Other):15751
	ROLE_DEPTNAME ROLE_TITLE ROLE_FAMILY_DESC ROLE_FAMILY

paul-english / Gruntfile.js

Created July 1, 2013 17:11

Gruntfile that makes use of assemble

	// Generated on 2013-04-18 using generator-webapp 0.1.7
	'use strict';
	var lrSnippet = require('grunt-contrib-livereload/lib/utils').livereloadSnippet;
	var mountFolder = function (connect, dir) {
	return connect.static(require('path').resolve(dir));
	};

	// # Globbing
	// for performance reasons we're only matching one level down:
	// 'test/spec/{,/}.js'

paul-english / hack.coffee

Created June 5, 2013 21:16

Hubot hacker plugin

paul-english / gist:4752760

Created February 11, 2013 04:58

Some work graphing a few probability distributions using d3.js

	var probability = {
	normal: function(x, mean, stddev) {
	var y = (1 / (stddev * Math.sqrt(2 * Math.PI))) * Math.pow(Math.E, - (Math.pow(x - mean, 2) / (2 * Math.pow(stddev, 2))));
	//console.log('normal', x, mean, stddev, y);
	return y;
	},
	logNormal: function(x, mean, stddev) {
	var y = (1 / (x * Math.sqrt(2 * Math.PI * Math.pow(stddev, 2)))) * Math.pow(Math.E, - (Math.pow(Math.log(x) - mean, 2) / (2 * Math.pow(stddev, 2))));
	//console.log('logNormal', x, mean, stddev, y);
	y = isFinite(y) ? y : 0;

paul-english / neural-life.coffee

Created January 31, 2013 01:43

Neural network based implementation of Conway's game of life

	brain = require('brain')
	life = new brain.NeuralNetwork()
	assert = require('assert')
	_ = require('underscore')

	THRESHOLD = 0.35
	SIZE = 10

	class Matrix
	state: []

paul-english / GenericTestPlan.tex

Created January 30, 2013 04:07

A build file that places any static files in the `files` directory into your jar file, and a latex template for writing tabled test plans.

Paul English paul-english