defaultdict tutorial
Michelle Fullwood
Motivation
Common task in text processing: doing a frequency count.
Common pattern
# frequency count for words in some text
text = " baa baa black sheep " . split ()
freqcount = dict ()
for word in text :
if word not
Digital Signatures in a PDF
This document describes how digital signatures are represented in a PDF document and what
signature-related features the PDF language supports. Adobe Reader and Acrobat have
implemented all of PDFs features and therefore provid
Chapter 10
CHAPTER TEN
SQL
Don Chamberlin
Given a large collection of structured data, how can you provide an efficient way to
gather, retrieve, and update information when you dont know what kind of operations people will need? Thats the fundamental idea
Chapter 1
CHAPTER ONE
C+
Bjarne Stroustrup
C+ occupies an interesting space among languages: it is built on the foundation of
C, incorporating object-orientation ideas from Simula; standardized by ISO; and
designed with the mantras you dont pay for what y
( SS64 )
Links
Syntax
Search
An A-Z Index of the Bash command line for Linux.
alias Create an alias
apropos Search Help manual pages (man -k)
apt-get Search for and install software packages (Debian/Ubuntu)
aptitude Search for and install software pa
Chapter 2
CHAPTER TWO
Python
Guido von Rossum
Python is a modern, general-purpose, high-level language developed by Guido van
Rossum as a result of his work with the ABC programming language. Pythons philosophy is pragmatic; its users often speak of the Z
Chapter 12
CHAPTER TWELVE
Java
James Gosling
The Java language grew out of a project to run on small devices. It gained popularity with the rise of web browsers and applets, but with automatic memory management, a virtual machine, a large set of bundled l
Chapter 5
CHAPTER FIVE
BASIC
Thomas E. Kurtz
In 1963, Thomas Kurtz and John Kemeny invented BASIC, a general-purpose language intended to teach beginners to program as well as to allow experienced
users to write useful programs. Their original goals inclu
McCarthy Puzzle Hint
5/26/14 5:56 PM
The Joy of Complexity
Rabin came up with a solution using what is now known as a `one-way'
function. One-way functions translate into computational procedures.
They are easy to compute in one direction, but hard to com
Java vs Python - Which Programming Language Should Learn First
http:/javarevisited.blogspot.com/2013/11/java-vs-python-which.
Javarevisited
Blog about Java programming language, FIX Protocol, Tibco Rendezvous and related Java technology stack.
FRIDAY, NOV
Choosing between Java and Python - Stack Overflow
http:/stackoverflow.com/questions/954164/choosing-between-j.
sign up
Stack Overflow is a question and answer site for professional and enthusiast programmers. It's 100% free, no
registration required.
log
Syllabus MET CS200 Fundamentals of Information Technology
Instructor
Fall 2015
Nathan 'en' Kohn
enzyme@bu.edu
Course Description
MET CS200 Fundamentals of Information Technology
This course introduces information technology concepts and terminology and fo
743- Regression and Time
Series
Mamikon S. Ginovyan
1
2012 Mamikon Ginovyan
Statistics Review
2
2012 Mamikon Ginovyan
A. Background. Point Estimation
Point Estimation. Let X = ( X1, X2 ,., Xn ) be a sample form
X : F(x) = F(x, ) with unknown = (1 ,., p
743- Regression and Time
Series
Mamikon S. Ginovyan
2012 Mamikon Ginovyan
1
Probability Review
2012 Mamikon Ginovyan
2
2. Random Variables
Def.1. A real-valued function whose domain is the sample
space is called a Random Variable (RV).
Thus RV is any f
743- Regression and Time
Series
Mamikon S. Ginovyan
1
2012 Mamikon Ginovyan
Estimation in Stationary
ARMA(p,q) Models
2
2012 Mamikon Ginovyan
Estimation of
Mean , ACVF (h) and ACF (h)
3
2012 Mamikon Ginovyan
The Sample Autocorrelation Function
Although
743- Regression and Time Series
Mamikon S. Ginovyan
1
2012 Mamikon Ginovyan
Simple Linear Regression Model
2
2012 Mamikon Ginovyan
Two-Variable Regression Model
Statistical Inferences
The general Statistical Inference procedure of the
least-squares regr
743- Regression and Time Series
Mamikon S. Ginovyan
1
2012 Mamikon Ginovyan
Time Series Analysis
2
2012 Mamikon Ginovyan
1. Introduction:
A General Approach to
Time Series Analysis
3
2012 Mamikon Ginovyan
The objectives of time series analysis (TSA)
A
743- Regression and Time Series
Mamikon S. Ginovyan
1
2012 Mamikon Ginovyan
The Multiple Regression Model
2
2012 Mamikon Ginovyan
Elements of Matrix Algebra
Definition:
A matrix is a rectangular array of real numbers:
A Amn akj
k 1, m , j 1, n
a11 a12
743- Regression and Time
Series
Mamikon S. Ginovyan
1
The Prediction Problem
(Statistical Solution)
Mamikon Ginovyan
2
2. The Least Squares Method (LSM)
The Least Squares Method (LSM) is a general method of
estimation of unknown parameters, which is of gr
743- Regression and Time Series
Mamikon S. Ginovyan
1
2012 Mamikon Ginovyan
Time Series Analysis
2
2012 Mamikon Ginovyan
Stationary Models
&
The Autocorrelation Function
3
2012 Mamikon Ginovyan
Basic Definitions
Definition 1.
Let cfw_Xt , t = 0, 1, be
743- Regression and Time
Series
Mamikon S. Ginovyan
1
The Prediction Problem
Mamikon Ginovyan
2
1. Probabilistic Approach
Examples
1. A stock-holder wants to predict the value of his holdings at
some time in the future on the basis of his past experience
743- Regression and Time
Series
Mamikon S. Ginovyan
1
Conditional Probabilities
& Expectations
Mamikon Ginovyan
2
1. Conditional Probabilities
Assume that we have two DRVs X and Y with joint pmf
f ( x, y) P( X x, Y y) and marginal pmfs
f X ( x) P( X x) a
Personal Finance: Turning Money into Wealth, 6e (Keown)
Chapter 1 The Financial Planning Process
1.1 Facing Financial Challenges
1) Once a sound financial plan is in place, there should be no need to ever change it.
Answer: FALSE
2) When comparing two dif
Personal Finance: Turning Money into Wealth, 6e (Keown)
Chapter 1 The Financial Planning Process
1.1 Facing Financial Challenges
1) Once a sound financial plan is in place, there should be no need to ever change it.
Answer: FALSE
2) When comparing two dif
Personal Finance: Turning Money into Wealth, 6e (Keown)
Chapter 1 The Financial Planning Process
1.1 Facing Financial Challenges
1) Once a sound financial plan is in place, there should be no need to ever change it.
Answer: FALSE
2) When comparing two dif
Five-Year Car Cost
Assignment 3 Car Budget
Boston University
Five-Year Car Cost
Abstract
A prospective car buyer should evaluate all options prior to making a purchase.
This paper examines the total cost of purchasing, owning and driving a new Kia over fi
PURDUE QUANTITATIVE FINANCE CLUB
Presents
Rolando D. Navarro, Jr.
Ph.D. Candidate, Department of Statistics
Computational Finance Program
Purdue University
navarror@purdue.edu
Banking Experience
Risk Analyst (2010-2011)
Standard Chartered Bank
Group Model
Financial Concepts
Accounting for Assets Exercise Complete
Homework Exercise 2
1.
Identify accounts by category in the financial statements.
Identify the category for each of the following financial accounts and in which financial
statement those accounts
Module 4
3/17/15, 8:14 AM
Module 4
This is a single, concatenated le, suitable for printing or saving as a PDF for ofine viewing. Please
note that some animations or images may not work.
Module 4 Study Guide and Deliverables
Readings:
Online lectures
Savi
Module 2
3/17/15, 8:13 AM
Module 2
This is a single, concatenated le, suitable for printing or saving as a PDF for ofine viewing. Please
note that some animations or images may not work.
Module 2 Study Guide and Deliverables
Readings:
Online lectures
Savi