alexeygrigorev

DATE,VALUE
2004-08-04,.
2004-08-05,-17.93
2004-08-06,-16.73
2004-08-09,1.25
2004-08-10,13.82
2004-08-11,-3.25
2004-08-12,-12.56
2004-08-13,1.57
2004-08-16,14.54

alexeygrigorev

install.packages('hflights', 'entropy')

library(hflights)
library(entropy)


sample.size = 10000
reps = 5000

mean(hflights$ArrDelay, na.rm=T)

alexeygrigorev

/**
 * SyntaxHighlighter
 * http://alexgorbatchev.com/SyntaxHighlighter
 *
 * SyntaxHighlighter is donationware. If you are using it, please donate.
 * http://alexgorbatchev.com/SyntaxHighlighter/donate.html
 *
 * @version
 * 3.0.83 (July 02 2010)
 * 

alexeygrigorev

alexeygrigorev

(define (accumulate op initial sequence)
    (if (null? sequence)
        initial
        (op (car sequence)
            (accumulate op initial (cdr sequence)))
    )
)

(define (enumerate-interval begin end)
    (if (> begin end)

alexeygrigorev

import me.prettyprint.cassandra.serializers.ObjectSerializer;
import me.prettyprint.cassandra.service.ThriftCfDef;
import me.prettyprint.hector.api.*;
import me.prettyprint.hector.api.beans.HColumn;
import me.prettyprint.hector.api.ddl.*;
import me.prettyprint.hector.api.factory.HFactory;
import me.prettyprint.hector.api.mutation.Mutator;
import me.prettyprint.hector.api.query.QueryResult;
import org.slf4j.*;

alexeygrigorev

import java.util.*;

/**
 * Implementation is based on http://algorithms.soc.srcf.net/notes/dijkstra_with_heaps.pdf
 * 
 * @author Grigorev Alexey
 */
public class Heap<E, K> {

    private final List<HeapNode<E, K>> heap = new ArrayList<HeapNode<E, K>>();

alexeygrigorev

package optimization.vrp;

import java.awt.Color;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Random;

import org.w3c.dom.Document;

alexeygrigorev

package graph;

import java.util.*;
import com.google.common.collect.*;

/**
 * @author Alexey Grigorev
 */
public class Graph {

alexeygrigorev

$wgHooks['MediaWikiPerformAction'][] = 'wfActionMultipleArticles';

function wfActionMultipleArticles($output, $article, $title, $user, $request, $wiki) {
  $action = $request->getText('action', 'view');

  if ($action != 'multi') {
    return true;
  }