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@johnhw
johnhw / umap_sparse.py
Last active January 6, 2024 16:09
1 million prime UMAP layout
### JHW 2018
import numpy as np
import umap
# This code from the excellent module at:
# https://stackoverflow.com/questions/4643647/fast-prime-factorization-module
import random
@delameko
delameko / upgrade-postgres-9.5-to-9.6.md
Last active August 22, 2023 08:22 — forked from johanndt/upgrade-postgres-9.3-to-9.5.md
Upgrading PostgreSQL from 9.5 to 9.6 on Ubuntu 16.04

TL;DR

Install Postgres 9.6, and then:

sudo pg_dropcluster 9.6 main --stop
sudo pg_upgradecluster 9.5 main
sudo pg_dropcluster 9.5 main
@gigamonkey
gigamonkey / criteria.txt
Last active January 5, 2020 06:21
Hiring criteria: looking for the ability to …
Write a program that does what it’s supposed to do
Write idiomatic code
Debug a program that you wrote
Debug a program someone else wrote
Debug the interaction between a system you wrote and one you didn’t
File a good bug report
Modify a program you didn’t write
Test a program you wrote
Test a program you didn’t write
Learn a new programming language
(defn debounce
([c ms] (debounce (chan) c ms))
([c' c ms]
(go
(loop [start nil loc (<! c)]
(if (nil? start)
(do
(>! c' loc)
(recur (js/Date.) nil))
(let [loc (<! c)]
@Chouser
Chouser / externs_for_cljs.clj
Created June 17, 2013 13:44
Generate an externs.js file for arbitrary JS libraries for use in advanced Google Closure compilation, based on the ClojureScript code that uses the libraries.
(ns n01se.externs-for-cljs
(:require [clojure.java.io :as io]
[cljs.compiler :as comp]
[cljs.analyzer :as ana]))
(defn read-file [file]
(let [eof (Object.)]
(with-open [stream (clojure.lang.LineNumberingPushbackReader. (io/reader file))]
(vec (take-while #(not= % eof)
(repeatedly #(read stream false eof)))))))
@ztellman
ztellman / gist:5603216
Last active May 26, 2019 17:08
an exploration of the memory implications of call-site caching for protocols
;; let's create a simple protocol that just returns a number
user> (defprotocol NumberP (number [_]))
NumberP
;; now we'll create an implementation that always returns '1'
user> (deftype One [] NumberP (number [_] 1))
user.One
;; unsurprisingly, this type only has a single static value, which wraps the '1'
> (-> One .getDeclaredFields seq)
@paulp
paulp / The Signs of Soundness
Last active June 17, 2021 06:48
The Signs of Soundness
Hello scala, my old friend
I've come to take you home again
Because a feature slowly creeping
left me plagued with doubts and weeping
and the version that was tagged in the repo
just has to go
it lacks the signs of soundness
On sleepless nights I hacked alone
applying ant and other tools of stone
@natw
natw / fizzbuzz.py
Created November 15, 2012 16:22
best fizzbuzz
import random
for i in range(0, 100):
if not i % 15:
random.seed(1178741599)
print [i+1, "Fizz", "Buzz", "FizzBuzz"][random.randint(0,3)]
####################################
# BASIC REQUIREMENTS
# http://graphite.wikidot.com/installation
# http://geek.michaelgrace.org/2011/09/how-to-install-graphite-on-ubuntu/
# Last tested & updated 10/13/2011
####################################
sudo apt-get update
sudo apt-get upgrade
@clintel
clintel / gist:1155906
Created August 19, 2011 02:40
Fenced code in bullet lists with GitHub-flavoured MarkDown??

Fenced code blocks inside ordered and unordered lists

  1. This is a numbered list.

  2. I'm going to include a fenced code block as part of this bullet:

    Code
    More Code