1017 search results for "latex"

Analyses as Packages

Analyses as Packages TL;DR Instead of writing an analysis as a single or set of R scripts, use a package and include the analysis as a vignette of the package. Read below for the why, the how is in the next post. Analyses and Reports As data science or statistical researchers, we tend to do a lot of analyses, whether for our...

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A Few Notes on UseR! 2014

July 25, 2014
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A Few Notes on UseR! 2014

It has been a month since the UseR! 2014 conference, and I'm probably the last one who writes about it. UseR! is my favorite conference because it is technical and not too big. I have completely lost interest in big and broad conferences like JSM (to me, it has become Joint Sightseeing Meetings). Karl has written two blog posts...

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Bio7 R Documentation and Plot Examples

July 18, 2014
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18.07.2014 A very time expensive process is the documentation of software you created yourself. I was finally able to update and improve the documentation for Bio7 and the embedded R “Graphical User Interface”. For the documentation this time i used Lyx to export the LaTeX document as HTML with the available eLyXer export module. The

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The secrets of a linear world exposed

July 15, 2014
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The secrets of a linear world exposed

Like many concepts in mathematics, linearity has multiple interpretations and meanings. What do we mean when we say something is …Continue reading →

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another R new trick [new for me!]

July 15, 2014
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another R new trick [new for me!]

While working with Andrew and a student from Dauphine on importance sampling, we wanted to assess the distribution of the resulting sample via the Kolmogorov-Smirnov measure where F is the target.  This distance (times √n) has an asymptotic distribution that does not depend on n, called the Kolmogorov distribution. After searching for a little while,

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R 3.1.1 is released (and how to quickly update it on Windows OS)

July 10, 2014
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R 3.1.1 is released (and how to quickly update it on Windows OS)

R 3.1.1 (codename “Sock it to Me“) was released today! You can get the latest binaries version from here. (or the .tar.gz source code from here). The full list of new features and bug fixes is provided below. Upgrading to R 3.1.1 on Windows If you are using Windows you can easily upgrade to the latest version of R using the

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Mathematical functions on non-numbers?!

July 10, 2014
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Mathematical functions on non-numbers?!

A question came up about regarding Q1.4.9 in Cherney, Denton, Waldron. Here is a snippet of the original question: Consider …Continue reading →

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Buster – a new R package for bagging hierarchical clustering

July 9, 2014
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Buster – a new R package for bagging hierarchical clustering

I recently found myself a bit stuck. I needed to cluster some data. The distances between the data points were not representable in Euclidean space so I had to use hierarchical clustering. But then I wanted stable clusters that would retain their shape as I updated the data set with new observations. This I could … Continue reading...

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recycling accept-reject rejections (#2)

July 1, 2014
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recycling accept-reject rejections (#2)

Following yesterday’s post on Rao’s, Liu’s, and Dunson’s paper on a new approach to intractable normalising constants, and taking advantage of being in Warwick, I tested the method on a toy model, namely the posterior associated with n Student’s t observations with unknown location parameter μ and a flat prior, which is “naturally” bounded by

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Tailoring univariate probability distributions

June 26, 2014
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Tailoring univariate probability distributions

This post shows how to build a custom univariate distribution in R from scratch, so that you end up with the essential functions: a probability density function, cumulative distribution function, quantile function and random number generator. In the beginning all you need is an equation of the probability density function, … Continue reading →

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