# 966 search results for "LaTeX"

## Combining R and LaTeX with Sweave

January 6, 2009
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Today I did some experiments to learn how to combine R and LaTeX to create reproducible research reports. Here are my first results:First Demo ...

## Combining R and LaTeX with Sweave

January 6, 2009
By

Today I did some experiments to learn how to combine R and LaTeX to create reproducible research reports. Here are my first results:First Demo ...

## Object Oriented Programming with R: An example with a Cournot duopoly

April 23, 2014
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$P(q) = q^{-\dfrac{1}{\eta}$

I started reading Applied Computational Economics & Finance by Mario J. Miranda and Paul L. Fackler. It is a very interesting book that I recommend to every one of my colleagues. The only issue I have with this book, is that the programming language they use is Matlab, which is proprietary. While there is a free...

## Fracking and House Prices on the Marcellus Shale

April 21, 2014
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Starting last summer I worked on a short project that set out to estimate the potential costs of externalities due to unconventional shale gas production in the Marcellus shale on local house prices using a dataset of roughly 150,000 recently sold houses in Ohio, West Virginia and Pennsylvania. I stopped working on a project that

## Testing for Linear Separability with Linear Programming in R

April 19, 2014
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For the previous article I needed a quick way to figure out if two sets of points are linearly separable. But for crying out loud I could not find a simple and efficient implementation for this task. Except for the perceptron and … Continue reading → The post Testing for Linear Separability with Linear Programming in R appeared first...

## How Fast the Fastest Human Would Run 100m?

April 16, 2014
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Ethan Siegel wrote a post entitled The Math of the Fastest Human Alive five years ago, using regressions. An alternative is too use extreme value models (I wrote a post a long time ago on the maximum length of a tennis match using extreme value theory a few years ago). In 2009, John Einmahl and Sander Smeets wrote a great article...

## Errors on percentage errors

April 16, 2014
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The MAPE (mean absolute percentage error) is a popular measure for forecast accuracy and is defined as     where denotes an observation and denotes its forecast, and the mean is taken over . Armstrong (1985, p.348) was the first (to my knowledge) to point out the asymmetry of the MAPE saying that “it has a bias favoring estimates...

## Side-by-Side Box Plots with Patterns From Data Sets Stacked by reshape2 and melt() in R

Introduction A while ago, one of my co-workers asked me to group box plots by plotting them side-by-side within each group, and he wanted to use patterns rather than colours to distinguish between the box plots within a group; the publication that will display his plots prints in black-and-white only.  I gladly investigated how to

## R 3.1.0 is released!

April 10, 2014
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R 3.1.0 (codename “Spring Dance“) was released today! You can get the source code from http://cran.r-project.org/src/base/R-3/R-3.1.0.tar.gz or wait for it to be mirrored at a CRAN site nearer to you. Binaries for various platforms will appear in due course. The full list of new features and bug fixes is provided below. Upgrading to R 3.1.0 You can