547 search results for "Register"

High incidence in Measles Data in Project Tycho

April 21, 2014
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High incidence in Measles Data in Project Tycho

In this third post on Measles data I want to have a look at some high incidence occasions. As described before, the data is from Project Tycho, which contains data from all weekly notifiable disease reports for the United States dating back to 1888. These data are freely available to anybody...

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Vectorization in R: Why?

April 16, 2014
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Here are my notes from a recent talk I gave on vectorization at a Davis R Users’ Group meeting. Thanks to Vince Buffalo, John Myles White, and Hadley Wickham for their input as I was preparing this. Feedback welcome! Beginning R users are often told to “vectorize” their code. Here, I try to explain...

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Investigating the relationship between gold and bitcoin prices with R.

April 15, 2014
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Investigating the relationship between gold and bitcoin prices with R.

Image by Ennio Pozzetti   In this post I will explore some of the movements in markets in recent years, these movements have caught many by surprise resulting in some people unexpectedly striking it rich while others have lost a great deal. I am no financial advisor, nor do I have a background in financial

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Regular expressions in R vs RStudio

April 14, 2014
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Regular expressions in R vs RStudio

The 'regex' family of languages and commands is used for manipulating text strings. More specifically, regular expressions are typically used for finding specific patterns of characters and replacing them with others. These technique have a range of applications and R's base installation has powerful regex tools (not to mention add-on packages for string manipulation such as stringr). Yet regex in R is cause of...

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Regular expressions in R vs RStudio

April 14, 2014
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Regular expressions in R vs RStudio

The 'regex' family of languages and commands is used for manipulating text strings. More specifically, regular expressions are typically used for finding specific patterns of characters and replacing them with others. These technique have a range of applications and R's base installation has powerful regex tools (not to mention add-on packages for string manipulation such as stringr). Yet regex in R is cause of...

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Survey: Computing Your Own Post-Stratification Weights in R

April 13, 2014
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Social Science Goes R: Weighted Survey Data Survey Data: Computing Your Own Weights The second installment in my series on working with survey data in R explains how to compute your own post-stratification weights to use with survey data. For a more...

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R 3.1.0 is released!

April 10, 2014
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R 3.1.0 is released!

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

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Visualizing Twitter Followers Using Pointillism

April 10, 2014
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Visualizing Twitter Followers Using Pointillism

A funny thing about social media in the 21st century is that it allows us to connect with a lot of people.. by a lot, I mean so many that it's easy to lose track of any sense of scale. Maybe others are better at this, but...

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JMBayes R package (webinar)

April 8, 2014
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JMBayes R package (webinar)

A free webinar will provide an introduction to the “JMBayes” R package which provides methods for Joint Modeling of Longitudinal and Time-to-Event Data under a Bayesian Approach. Webinar Format: - Introduction to Joint Models and the JMBayes R package - … Continue reading →

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Looking at Measles Data in Project Tycho, part II

April 6, 2014
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Looking at Measles Data in Project Tycho, part II

Continuing from last week, I will now look at incidence rates of measles in the US. To recap, Project Tycho contains data from all weekly notifiable disease reports for the United States dating back to 1888. These data are freely available to any...

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