aishfenton

select regexp_extract(date_time,'[^T]*T([0-9][0-9])', 1), count(*)
from single_search 
group by regexp_extract(date_time,'[^T]*T([0-9][0-9])', 1)

aishfenton

* Actively supported linear alg library ;)

* Good optimization libraries.

* Better low-level GPU libaries. JCuda, but better.

* A feature-rich plotting library.

* Richer MCMC libaries.

aishfenton

trait EnumMap[A, B] {
  def apply(a: A): B
}

// Quick sketch, untested.
final class ArrayEnumMap[A, @spec B : ClassTag](xs: Seq[(A,B)]) extends EnumMap[A,B] {

  val (keys, values) = mkEntries(xs)
  val size = keys.length

aishfenton

implicit val listIntRead: scopt.Read[List[Int]] =
  scopt.Read.reads { str =>
    val parts = str.split(",").map(_.trim).toList
    parts.flatMap { p =>
      if (p.contains("-")) {
        val (start :: end :: Nil) = p.split("-").map(_.trim.toInt).toList
        Range(start, end + 1).toList
      }
      else p.toInt :: Nil
    }

aishfenton

package union

/**
  * Much magic. Very Lambda. Wow!
  *
  * These types provide union types (i.e. val a = (String or Int) within Scala. See here for good discussion on
  * how to represent union types in Scala (hat tip Miles Sabin)
  *   http://stackoverflow.com/a/37450446/1591351
  *
  * Core idea is to adapt Demorgan's Law:

aishfenton

# sudo gem install bson
# sudo gem install bson_ext
# sudo gem install yajl-ruby
# sudo gem install json
# sudo gem install msgpack

require 'rubygems'
require 'benchmark'
require 'yaml'
require 'bson'