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Category: Python Articles

Fraud Detection using Python

An important issue confronting retailers and other businesses today is the preponderance of credit card fraud. This issue recently hit home, as my son was a victim a week prior to me writing this. We can apply machine learning to …

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What IS a Data Scientist?

The title of ‘Data Scientist’ is one of those sexy, evolving, roles that no-one seems to be able to characterize definitively. More accurately: just about everyone has their own definition. If you ask four practitioners in the data space, you’ll …

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Gambling, Games, and Statistics

My first statistics textbook was a friend’s inexpertly photocopied “Dungeon Masters Guide,” by Gary Gygax (piracy took more effort back then). In those brutal days, you generated the attributes of your character by rolling three six-sided dice and adding them. …

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Interpreting Results from Linear Regression – Is the data appropriate?

Whether you are fairly new to data science techniques or even a seasoned veteran, interpreting results from a machine learning algorithm can be a trying experience. The challenge is making sense of the output of a given model. Does that …

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The Many Faces of Python (And How to Manage Them)

Python is Definitely Not a Snake What is Python? You probably know it’s a programming language. But is Python a program? A language? An ecosystem? It’s all of these and more. What is the actual software that lets us create …

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Pyparseltongue: Parsing Text with Pyparsing

Text Parsing Tools Some people, when confronted with a problem, think “I know, I’ll use regular expressions.” Now they have two problems. –Jamie Zawinski, 1997 I don’t actually agree with Mr. Zawinski – I’ve been using regular expressions successfully for …

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Pandas and Bandwidth in Python Tutorial: Plotting the Results of Internet Speed Tests

Prologue: We all hate the cable company. For the past few months we’ve had to reboot the cable modem every week or so. Nerd that I am, I went out and bought a new cable modem. I hooked it up …

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Djumping into Django

What is Django? Django is a Web framework like Rails, Spring, or ASP.NET MVC, but for Python. Using Django, you can quickly develop a Web application whose data (models) is stored in the database of your choosing, using templates for …

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Using defaultdict in Python

Dictionaries are a convenient way to store data for later retrieval by name (key). Keys must be unique, immutable objects, and are typically strings. The values in a dictionary can be anything. For many applications the values are simple types …

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Named Tuples in Python

When you need to represent a list of identical objects with different values, you start with a list of tuples. It’s an efficient way to hold a collection of related data. Tuples are like structures or records in other languages, …

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