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import numpy as np
def encode(featureset, label, mapping):
    encoding = []
    for (fname, fval) in featureset.items():
        if(fname,fval,label) in mapping:
            encoding.append((mapping[(fname,fval,label)],1))
    return encoding

def calculate_empirical_fcount(train_toks, mapping):
    fcount = np.zeros(len(mapping))

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<?xml version="1.0" encoding="UTF-8"?>

<!--
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.  See the NOTICE file
distributed with this work for additional information
regarding copyright ownership.  The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License.  You may obtain a copy of the License at

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type Re = 
    | Lit of char
    | Seq of Re * Re
    | Or of Re * Re
    | Star of Re

let rec match2 (re: Re) (str: char list) k =
    match re with
        | Lit(c) -> match str with                       
                        | [] -> false

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#!/usr/bin/python
import time

# for more info https://www.youtube.com/watch?v=oiV6sbuQUNc

def round():
    for i in "Inhale 2 3 4 Hold 2 3 4 5 6 7 Exhale 2 3 4 5 6 7 8".split(" "):
        print i
        time.sleep(1)

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package jregress;

import org.hamcrest.BaseMatcher;
import org.hamcrest.Description;
import org.hamcrest.Matcher;
import org.junit.Test;

import java.io.File;
import java.io.IOException;
import java.nio.file.Files;

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def has_factor(factor, word):
    return lambda n: word if n % factor == 0 else ''
    
def has_substring(i, word):
    return lambda n: word if str(i) in str(n) else ''

def concat(rule1, rule2):
    return lambda n: rule1(n) + rule2(n)
    
def one_of(rule1, rule2):

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from math import exp
from random import gauss, shuffle
interest=.01
vol=.15
T = 1.0/365

def moved(x, _):
    return x * exp((interest-.5*vol**2)*T + vol*T**.5*gauss(0,1))

St0=400.0

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(defn neighbours [cell]
  (map (partial mapv + cell)
       [[-1 -1] [-1 0] [-1 1]
        [ 0 -1]        [ 0 1]
        [ 1 -1] [ 1 0] [ 1 1]]))

(def live? #{[true 3] [true 2] [false 3]})

(defn step [live-cells] 
  (set 

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ruby -run -e httpd . -p 3000

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Feature Toggle

$(document).one('feature-a', '#some-id', function() {
  $(document).on('some-event', '#some-ids', handler);
});

//Turn on feature a
$('#a, #b').trigger('feature-a');