The default plot method for dataframes in R is to show each numeric variable in a pair-wise scatter plot. I find this to be a really useful first look at a dataset, both to see correlations and joint distributions between variables, but also to quickly diagnose potential strangeness like bands of repeating values or outliers. […]
They sprint, they jump, they lift. Does any of it matter come draft day? Click through to read my take on the matter. Predicting NFL draft picks based on their combine results!
Guest post by Matt Sundquist of plot.ly. Plotly is a social graphing and analytics platform. Plotly’s R library lets you make and share publication-quality graphs online. Your work belongs to you, you control privacy and sharing, and public use is free (like GitHub). We are in beta, and would love your feedback, thoughts, and advice. […]
Sometimes it's cool to discriminate. (I mean, if Abercrombie does it...) There I said it. I'm sick and tired of people being all PC(A) about it. I think Linear Discriminant Analysis is a great way to classify your data, and I don't care who knows it. ...
I have chest pain, but not because of what you might think. Although if it were that serious, I might go to the hospital and get it checked out. And the cost would vary wildly - depending upon where the hospital is located. And that's how you segu...
So unless you live here or aren't interested in healthcare (both equally valid excuses), the U.S. government just released Medicare costs and payments made by hospitals around the country. The New York Times subsequently published a number of articles ...
The moment you've all been waiting for has arrived. No, not the day Ryan Gosling actually eats his cereal, but rather the results of the highly anticipated study which attempted to predict the likelihood of a college student having smoked marijuana giv...
Recall that in last week's installment of Coursera's Machine Learning class, we covered linear regression - the most fundamental way of making a prediction where the outcome is a number, like predicting the price of a stock or how much rainfall (i...
Unless of course you were thinking about this type of pothead. In which case yes, exactly the kind you're thinking. So, how can we predict people who've smoked ganja at least once? While there are probably multiple causes, as is always the case with so...
The UCI Machine learning repository houses a plethora of analyzable data sets. One that I've always thought was interesting is the US adult census data. This data set is based on the 1994 US census, filtered by working adults. The goal is to predict wh...
