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Object-oriented programming in Python for a non-object-oriented programmer

When I first seriously decided to learn programming about three years ago, I picked up Python using Zed Shaw's Learn Python the Hard Way. While an excellent introduction to programming for someone who had previously only cobbled together SPSS syntax, …

Posted on November 11, 2015 • 9 minutes read Read on
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Linear regression tools in R

Choosing the right linear regression model for your data can be an overwhelming venture, especially when you have a large number of available predictors. Luckily R has a wide array of in-built and user-written tools to make this process easier. In …

Posted on November 4, 2015 • 10 minutes read Read on
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Interpreting linear regression coefficients

Coming from a psychology background, I have a soft spot for multiple linear regression. This method is a workhorse in statistics and machine learning, being flexible, powerful and easily interpretable. An issue that people new to multiple regression …

Posted on October 28, 2015 • 8 minutes read Read on
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Avoiding the crowds in Melbourne CBD using data

I love visiting the CBD of Melbourne - it is a beautiful place with great restaurants, cafes, shopping and museums. Unfortunately, as with any big city it can get really crowded at times, which can sap a bit of enjoyment for a nerd like me! Imagine …

Posted on October 21, 2015 • 9 minutes read Read on
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Using k-fold cross-validation to estimate out-of-sample accuracy

One of the biggest issues when building an effective machine learning algorithm is overfitting. Overfitting is where you build a model on your training data and it not only picks up the true relationship between the outcome and the predictors, but …

Posted on October 14, 2015 • 7 minutes read Read on
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