linearregression

#!/usr/bin/env escript

-mode(compile).


-record(gen, {
  module,
  enums = [],
  structs = [],
  aliases = [],

linearregression

https://news.ycombinator.com/item?id=9812245

Go:
Meta https://news.ycombinator.com/item?id=9815607
Mesosphere https://news.ycombinator.com/item?id=9813131
Schrödinger https://news.ycombinator.com/item?id=9815826
flinc https://news.ycombinator.com/item?id=9817310
Second Spectrum https://news.ycombinator.com/item?id=9812647
Collective Health https://news.ycombinator.com/item?id=9812298
Umbel https://news.ycombinator.com/item?id=9813267

linearregression

The fastest remote directory rsync over ssh archival I can muster (40MB/s over 1gb NICs)

This creates an archive that does the following:

rsync (Everyone seems to like -z, but it is much slower for me)

• a: archive mode - rescursive, preserves owner, preserves permissions, preserves modification times, preserves group, copies symlinks as symlinks, preserves device files.
• H: preserves hard-links
• A: preserves ACLs

linearregression

defmodule Guard.Helpers do

  @moduledoc """
  Tools for creating custom guards.
  """

  @doc """
  Creates a macro that's aware of its presence in a guard.
  
  Taken from https://github.com/elixir-lang/elixir/blob/master/lib/elixir/lib/kernel.ex#L1601,

linearregression

% Copyright (c) 2010-2014, Lars Buitinck
% May be used, redistributed and modified under the terms of the
% GNU Lesser General Public License (LGPL), version 2.1 or later

% Heaps/priority queues in Erlang

% Heaps are data structures that return the entries inserted into them in
% sorted order. This makes them the data structure of choice for implementing
% priority queues, a central element of algorithms such as best-first/A*
% search and Kruskal's minimum-spanning-tree algorithm. 

linearregression

Using OTP's observer (appmon replacement) remotely

$ ssh remote-host "epmd -names"
epmd: up and running on port 4369 with data:
name some_node at port 58769

Note the running on port for epmd itself and the port of the node you're interested in debugging. Reconnect to the remote host with these ports forwarded:

$ ssh -L 4369:localhost:4369 -L 58769:localhost:58769 remote-host

linearregression

Github Events Analysis with Neo4j

On July 22, Github announced the 3rd Annual Github Data Challenge presenting multiple sources of data available.

This sounded to me a good opportunity to use their available data and import it in Neo4j in order to have a lot of fun at analyzing the data that fits naturally in a graph.

As I work mainly offline or behind military proxies that do not permit me to use the ReST API, I decided to go for the Github Archive available here, you can then download json files representing Github Events on a daily/hour basis.

linearregression

BEAM

assemble

$ erlc -S test.erl

linearregression

git clone <repo-address>

git tag -l

git checkout <tag-name>

git branch -D master

git checkout -b master

linearregression

{
   "AWSTemplateFormatVersion":"2010-09-09",
   "Description":"Start up a parallel Bioconductor cluster with ssh access. **WARNING** This template creates Amazon EC2 instances. You will be billed for the AWS resources used if you create a stack from this template.",
   "Parameters":{
       "BiocVersion" : {
         "Description" : "Bioconductor Version. 2.11 is recommended.",
         "Type" : "String",
         "Default": "2.11",
         "AllowedValues": ["2.11"],
         "ConstraintDescription": "Must be 2.11"