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### Download and install
cd /tmp
curl http://erlang.org/download/otp_src_R13B03.tar.gz | tar zx
cd otp_src_R13B
./configure --enable-hipe
make
sudo make install

sudo mkdir -p /Library/Erlang/lib
mkdir -p ~/Library/Erlang/lib

jamesp

include Java
require 'blpapi3.jar'

opts = com.bloomberglp.blpapi.SessionOptions.new
opts.server_host = 'localhost'
opts.server_port = 8194

session = com.bloomberglp.blpapi.Session.new opts
service = '//blp/refdata'
throw "Can't start Bloomberg" unless session.start && session.open_service(service)

jamesp

Steamed Fish with Garlic Ginger Soy Sauce

Serves: 2

Ingredients

• 1 Whole Fish (approx. 400g), gutted with head and tail still on.
• 5-6 Spring Onions

jamesp

from bisect import bisect_left, bisect_right

class TimeseriesCache(object):
    """Store a timeseries of data in memory for random access."""
    def __init__(self, ttl=None):
        self.timestamps = []
        self.data = []
        self.ttl = ttl
        
    def add(self, timestamp, data):

jamesp

import numpy as np
import pylab as lab

# don't show all decimal places when printing
np.set_printoptions(precision=4)
 
# define a, b and c
a = np.ones([4,4])
print "a:\n", a
 

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jamesp

iPython basics

Using the console

• autcomplete works on variable and function names
• Up arrow takes you back to previously entered commands
• %quickref gives an overview of available functionality.

magic commands

iPython has "magic" commands which are an set of meta functions for

jamesp

import pandas as pd
p = pd.read_csv('m:/presents.csv')

p[:10]
plt.plot(p[:10])


p.columns= 'id x y z'.split()
p['volume'] = p.x * p.y * p.z

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jamesp