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damianb / ci_lower_bound.sql
Created Jul 6, 2017 — forked from favila/ci_lower_bound.sql
MySQL stored functions for calculating confidence intervals using Wilson scores: more precisely "Lower bound of Wilson score confidence interval for a Bernoulli parameter". Includes a P(qn) function (inverse normal distribution). See http://www.evanmiller.org/how-not-to-sort-by-average-rating.html This describes a way to rank items based on a ve…
View ci_lower_bound.sql
# Francis Avila 2009-07-04
# See http://www.evanmiller.org/how-not-to-sort-by-average-rating.html
# These functions calculate "Lower bound of Wilson score confidence interval for a Bernoulli parameter"
# Two stored functions:
# CI_LOWER_BOUND(pos, trials, confidence) calculate a wilson score given POS positive votes in TRIALS number of trials
# PNORM(qn) calculate P(qn) (inverse normal distribution); needed by CI_LOWER_BOUND
delimiter ;;
CREATE DEFINER=`root`@`localhost` FUNCTION `ci_lower_bound`(pos INTEGER, trials INTEGER, confidence DOUBLE) RETURNS double
NO SQL
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Keybase proof

I hereby claim:

  • I am damianb on github.
  • I am katana (https://keybase.io/katana) on keybase.
  • I have a public key ASDDSId0nnuRdIzKuUumjcJR_acVhzfuco1QN4eiyLC0tQo

To claim this, I am signing this object:

@damianb
damianb / mpd.service
Last active Aug 29, 2015
Compare and contrast: sysvinit versus systemd
View mpd.service
[Unit]
Description=Music Player Daemon
After=sound.target
[Service]
ExecStart=@prefix@/bin/mpd --no-daemon
[Install]
WantedBy=multi-user.target
View keybase.md

Keybase proof

I hereby claim:

  • I am damianb on github.
  • I am katana (https://keybase.io/katana) on keybase.
  • I have a public key whose fingerprint is F169 9B1E 2DE9 0217 0522 2B7F D051 EFF5 A991 EA1F

To claim this, I am signing this object:

View ss.sh
function ss {
scrot ~/.ss/$1.png > /dev/null
scp ~/.ss/$1.png solanine:~/http/ss/ > /dev/null
echo http://odios.us/\~/ss/$1.png | xclip -selection clipboard
echo uploaded to http://odios.us/\~/ss/$1.png
}
View gist:6159971
function uriCompressor()
for(var i = 0, this.convArray = []; i <= 61; i++) {
if(i < 10) {
this.convArray.push(i)
} else if(i < 36) {
this.convArray.push(i.toString(36))
} else {
this.convArray.push((i - 26).toString(36).toUpperCase()
}
}
@damianb
damianb / plugin.js
Created Mar 13, 2013
Because data modification in plugins is nicer than just an emit listener. Note: your listeners have to be specifically adapted for plugin.hook() forwarding
View plugin.js
var EventEmitter = require('events').EventEmitter,
util = require('util'),
async = require('async')
function plugin() {
EventEmitter.call(this)
}
util.inherits(plugin, EventEmitter)
// A horribly butchered form of EventEmitter.emit, hacked to support data modification & chaining
View httpserv.js
var url = require('url'), path = require('path'), fs = require('fs'), port = parseInt(process.argv[2] || 8888, 10)
require('http').createServer(function(req, res) {
var rfile = path.join(__dirname, 'shareddir', url.parse(req.url).pathname)
if(!fs.existsSync(rfile)) {
res.writeHead(404, {'Content-Type': 'text/plain'})
res.write("404 Not Found\n")
res.end()
} else {
fs.readFile(rfile + (fs.statSync(rfile).isDirectory()) ? '/index.html' : '', 'binary', function(err, file) {
if(err) {
View 4198.js
var zlib = require('zlib')
zlib.gzip(Buffer('test'), function(err, res) {
console.dir(res)
var resString = res.toString()
var resBuffer = Buffer(resString, 'binary')
console.dir(resBuffer)
zlib.gunzip(resBuffer, function(err, text) {
if(err) throw err
console.log(text.toString())
})
@damianb
damianb / interject.js
Last active Dec 11, 2015
Attempt at nodejs stdout "buffer interjection". Might be useful, ugly attempt though. Relies on ANSI escape codes (primarily SCP, RCP, ED). Suggestions welcome, cleanup even more welcome. Please note that some things were done for specific reasons however - overloading `process.stdout` methods was not possible in my attempts and resulted in erro…
View interject.js
var readline = require('readline'),
EventEmitter = require('events').EventEmitter,
buffer = require('buffer')
var stdoutBuffer = new EventEmitter() // can't use util.inherits() with process.stdout. :\
for(x in process.stdout) stdoutBuffer[x] = process.stdout[x]
stdoutBuffer.last = ''
stdoutBuffer.write = function(input, encoding) {