mneedham

# Start up netcat server
nc -kluv localhost 9000

# Check it with lsof
$ lsof -Pni :9000
COMMAND   PID        USER   FD   TYPE             DEVICE SIZE/OFF NODE NAME
nc      59231 markneedham    5u  IPv6 0xd2ab0eedfdf2c00b      0t0  UDP [::1]:9000

# Send a UDP packet and see it's received
$ echo -n "mark" | nc -vvu localhost 9000

mneedham

A simple GraphGist

You create a GraphGist by creating a GitHub Gist in AsciiDoc and enter the URL to it in the form on this page.

Click on the Page Source button in the menu to see the source for this GraphGist!

Include a query console

//console

mneedham

A simple GraphGist

You create a GraphGist by creating a GitHub Gist in AsciiDoc and enter the URL to it in the form on this page.

Click on the Page Source button in the menu to see the source for this GraphGist!

Include a query console

//console

mneedham

A simple GraphGist

You create a GraphGist by creating a GitHub Gist in AsciiDoc and enter the URL to it in the form on this page.

Click on the Page Source button in the menu to see the source for this GraphGist!

Include a query console

//console

mneedham

= How to create a GraphGist

You create a GraphGist by creating a https://gist.github.com/[GitHub Gist] in http://asciidoctor.org/docs/asciidoc-quick-reference/[AsciiDoc] and enter the URL to it in the form on this page.
Alternatively, you can put an AsciiDoc document in https://www.dropbox.com/[Dropbox] and enter the public URL in the form.

This GraphGist shows the basics of using AsciiDoc syntax and a few additions for GraphGists.
The additions are entered as comments on their own line.
They are:  +//console+ for a query console; +//hide+, +//setup+ and +//output+ to configure a query; +//graph+ and +//table+ to visualize queries and show a result table.

Click on the Page Source button in the menu to see the source for this GraphGist.

mneedham

import pandas as pd
fare_ceiling = 40
train_df = pd.read_csv('train.csv')
train_df[train_df['Fare'] >= 39.0] = 39.0
fare_bracket_size = 10
number_of_price_brackets = fare_ceiling / fare_bracket_size
number_of_classes = 3 #There were 1st, 2nd and 3rd classes on board 
 
survival_table = pd.DataFrame(columns=['Sex', 'Pclass', 'PriceDist', 'Survived', 'NumberOfPeople'])
 

mneedham

import pandas as pd
 
def addrow(df, row):
    return df.append(pd.DataFrame(row), ignore_index=True)

def fare_in_bucket(fare, fare_bracket_size, bucket):
    return (fare > bucket * fare_bracket_size) & (fare <= ((bucket+1) * fare_bracket_size))

def build_survival_table(training_file):    
    fare_ceiling = 40

mneedham

#!/bin/sh

echo "i know spaces in the name are bad but the actual problem is the JRE 1.7 location on a Mac. JDK works fine"

mneedham

library('RCurl')
library('RJSONIO')

query <- function(querystring) {
  h = basicTextGatherer()
  curlPerform(url="http://localhost:7474/db/data/cypher",
              postfields=paste('query',curlEscape(querystring), sep='='),
              writefunction = h$update,
              verbose = FALSE
  )

mneedham

WITH me.name AS me, COLLECT(friend.name) AS friends
RETURN me, [HEAD(friends)] + [HEAD(TAIL(friends))] + [HEAD(TAIL(TAIL(friends)))] + [HEAD(TAIL(TAIL(TAIL(friends))))] + [HEAD(TAIL(TAIL(TAIL(TAIL(friends)))))]