jamesp

jamesp

jamesp

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

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

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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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

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

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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)