Skip to content

Instantly share code, notes, and snippets.

View lukem512's full-sized avatar

Luke lukem512

66 followers · 51 following
View GitHub Profile
@lukem512
lukem512 / alert.cpp
Created September 2, 2014 14:41
Generate Alert Tests in Bitcoin Core (SignAndSave alternative)
// Sign CAlert with stored private key
bool SignAlert(CAlert &alert)
{
// key in WIF format
const char* pszPrivKey = "";
// serialize alert data
CDataStream sMsg(SER_NETWORK, PROTOCOL_VERSION);
sMsg << *(CUnsignedAlert*)&alert;
alert.vchMsg = std::vector<unsigned char>(sMsg.begin(), sMsg.end());
@lukem512
lukem512 / dbte.js
Created March 21, 2017 23:42
Dense Binary Text Encoding
// Dense Binary Text Encoding
// Encode each of the 26 letter as 1 to 26, in binary.
// Encode spaces as 0.
const ASCII_A = 65;
const ENCODED_SPACE = 0;
function dbte(str) {
const digits = str.toUpperCase().split('');
const encoding = digits.reduce((obj, d, i) => {
@lukem512
lukem512 / toggle_wifi.sh
Created March 19, 2017 14:16
Toggle WiFi networks (OSX)
#! /bin/sh
ssid1="THEUNIVERSE"
pass1="yourpass"
ssid2="SPACE"
pass2="yourotherpass"
curr=`/System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport -I | awk '/ SSID/ {print substr($0, index($0, $2))}'`
echo Currently connected to $curr
echo Power cycling...
@lukem512
lukem512 / marnagas.js
Created December 12, 2016 17:58
// Sort the strings alphabetically, then sort the strings by length
// Naively compare each string to the others and try to find anagrams.
function hasAnagram(strings) {
const sorted = strings.map(s => s.split("").sort().join("")).sort();
return sorted.some((s, i) => {
const sliced = sorted.slice(0, i).concat(sorted.slice(i+1));
return sliced.find(s2 => s == s2);
});
}
@lukem512
lukem512 / logs.sh
Created July 14, 2016 10:21
Some command-line kung-fu
#! /bin/bash
# View the most recent Forever log file
logs=($(ls -t ~/.forever/logs)); less $logs[1]
@lukem512
lukem512 / plasma.html
Last active July 13, 2016 15:50
A JavaScript plasma visualiser
<html>
<head>
<title>Plasma</title>
<meta name="author" content="Luke Mitchell" />
<style>
body {
margin: 0;
padding: 0;
}
@lukem512
lukem512 / midtermproj.m
Last active July 12, 2016 10:25
Genetic Algorithms: Mid-term Project
%% Luke Mitchell, April 2016
%% Question 3
p.('a') = 1/2;
p.('c') = 1/6;
p.('g') = 1/6;
p.('t') = 1/6;
seq = 'acgtacgtacgt';
@lukem512
lukem512 / finalproj.m
Last active July 12, 2016 10:25
Genetic Algorithms: Final Project
% Final Project
% Luke Mitchell (lm0466)
% Main MATLAB script
function finalproj
% Retrieve mtDNA from GenBank
killerwhale = getgenbank('NC_023889');
disp(['Using ', killerwhale.Definition]);
% All organisms are vertebrates
@lukem512
lukem512 / critical.js
Created May 1, 2016 12:19
Find the critical value of the Mann-Whitney U Test (or the Robust Rank Order) using a Monte Carlo simulation
// Luke Mitchell, 2016
"use strict"
var mwu = require('mann-whitney-utest');
const DEFAULT_COUNT = 1000000
const DEFAULT_P = 0.05
function min (us) {
if (us[0] < us[1])
@lukem512
lukem512 / Keybase.md
Created February 25, 2016 16:06
Verification for my Keybase.io Profile

Keybase proof

I hereby claim:

  • I am lukem512 on github.
  • I am lukemitchell (https://keybase.io/lukemitchell) on keybase.
  • I have a public key whose fingerprint is D83E 1825 CCA2 1F1B 0216 3D39 9177 EEC4 EDED 967C

To claim this, I am signing this object: