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weakly informative reparameterisations

February 13, 2018
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weakly informative reparameterisations

Our paper, weakly informative reparameterisations of location-scale mixtures, with Kaniav Kamary and Kate Lee, got accepted by JCGS! Great news, which comes in perfect timing for Kaniav as she is currently applying for positions. The paper proposes a unidimensional mixture Bayesian modelling based on the first and second moment constraints, since these turn the remainder

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What does Microsoft do with R?

February 13, 2018
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I was genuinely chuffed to get a shout-out in the most recent episode of Not So Standard Deviations, the awesome statistics-and-R themed podcast hosted by Hilary Parker and Roger Peng. In that episode, Roger recounts his recent discovery of the Microsoft ecosystem of tools for R, which he (jokingly) dubbed the "Microsoft-verse". While we're flattered by the allusion to...

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shinyalert: Easily create pretty popup messages (modals) in Shiny

February 13, 2018
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shinyalert: Easily create pretty popup messages (modals) in Shiny

A brand new shiny package has entered the world yesterday: shinyalert. It does only one thing, but does it well: show a message to the user in a modal (aka popup, dialog, or alert box). Actually, it can do one more thing: shinyalert can also ...

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Is 10,000 Cells Big?

February 12, 2018
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Is 10,000 Cells Big?

Trick question: is a 10,000 cell numeric data.frame big or small? In the era of "big data" 10,000 cells is minuscule. Such data could be fit on fewer than 1,000 punched cards (or less than half a box). The joking answer is: it is small when they are selling you the system, but can be … Continue reading Is...

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tfestimators – Package: Embeddings for Categorical Variables

February 12, 2018
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tfestimators – Package: Embeddings for Categorical Variables

In my last posts (here and here) I explored how to use embeddings to represent categorical variables. Furthermore, I showed how to represent categorical variables with embeddings and add other variable to create a more complex model. Both posts focused...

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Diversity scholarships for upcoming R conferences

February 12, 2018
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One of the greatest things about the R community is its diversity. This is largely thanks to organizations like Forwards and R-Ladies, who have been instrumental in welcoming women and other under-represented groups to the world of R. Likewise, conferences in the R community encourage diversity, with open codes of conduct, facilitations like on-site child-care, and by offering scholarships...

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How to Access Datasets in R

February 12, 2018
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How to Access Datasets in R

Have you spent hours, pulling your hair out trying to figure out how to access datasets in R? Once imported to a variable, columns from a dataset (eg: CSV) can be very tricky to access. Sometimes columns contain spaces, funky characters or other incosistencies. Here are some examples on how to access the data from CSV and JSON datasets. CSV We’ll...

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Love Machine: Automating the romantic songwriting process

February 12, 2018
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Love Machine: Automating the romantic songwriting process

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How to maraaverickfy a blog post without even reading it

February 12, 2018
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Steph is currently out of the office, teaching people cool Data Science stuff on a cruise at Tech Outbound. She counts on her team to keep the company’s Twitter account afloat in the meantime, so I had to think of a way to contribute. What about advertising existing content from her blog in the style of her Twitter role...

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Parametric Portfolio Policies

February 11, 2018
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Parametric Portfolio Policies

By Gabriel Vasconcelos Overview There are several ways to do portfolio optimization out there, each with its advantages and disadvantages. We already discussed some techniques here. Today I am going to show another method to perform portfolio optimization that works … Continue reading →

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