# 3240 search results for "git"

## How to Extract Citation from a Body of Text

March 26, 2012
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Say, you have a text and you want to retrieve the cited names and years of publication. You wouldn't want to this by hand, wouldn't you?Try the following approach:(the text sample comes from THIS freely available publication)library(stringr)(txt <- ...

## The R-Podcast Episode 4: Data Structures-Introduction

March 25, 2012
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In this episode: Site updates, additional screencasts about R from other sites, listener feedback, and discussion on the fundamental data structures for R: vectors, matrices, lists, and data frames. The R code discussed in this episode is available in our GitHub repository, see the show notes for details. Leave us a voicemail a +1-269-849-9780, or

## Popularity of Programming Languages

March 25, 2012
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As you can see, R is relatively popular (but more so on StackOverflow than GitHub):For the original graph, click here. This scatter plot is a reminder that R is useful to learn not only for statistical modeling (since there are so many excellent packag...

## Levenshtein distance in C++ and code profiling in R

March 25, 2012
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At work, the client requested, if existing search engine could accept singular and plural forms equally, e. g. “partner” and “partners” would lead to the same result. The first option – stemming. In that case, search engine would use root of a word, e. g. “partn”. However, stemming has many weaknesses: two different words might have same root, a

## Disproportionality Data

March 25, 2012
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So I was hunting around for some data on disproportional electoral outcomes (when the proportion of voters cast for political parties is not close to the proportion of legislative seats that they win).Michael Gallagher keeps an updated version of his L...

## Citations in markdown using knitr

March 24, 2012
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I am finding myself more and more drawn to markdown rather then tex/Rnw as my standard format (not least of which is the ease of displaying the files on github, particularly now that we have automatic image uploading). One thing I miss from latex is the citation commands. (I understand these can be provided to

## R script to calculate QIC for Generalized Estimating Equation (GEE) Model Selection

March 23, 2012
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Generalized Estimating Equations (GEE) can be used to analyze longitudinal count data; that is, repeated counts taken from the same subject or site. This is often referred to as repeated measures data, but longitudinal data often has more repeated obse...

## R script to calculate QIC for Generalized Estimating Equation (GEE) Model Selection

March 23, 2012
By

Generalized Estimating Equations (GEE) can be used to analyze longitudinal count data; that is, repeated counts taken from the same subject or site. This is often referred to as repeated measures data, but longitudinal data often has more repeated observations. … Continue reading →

## Gini Efficient Frontier

March 23, 2012
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$Gini Efficient Frontier$

David Varadi have recently wrote two posts about Gini Coefficient: I Dream of Gini, and Mean-Gini Optimization. I want to show how to use Gini risk measure to construct efficient frontier and compare it with alternative risk measures I discussed previously. I will use Gini mean difference risk measure – the mean of the difference