November 2015

How to Search for Census Data from R

November 16, 2015 | Ari Lamstein

In my course Learn to Map Census Data in R I provide people with a handful of interesting demographics to analyze. This is convenient for teaching, but people often want to search for other demographic statistics. To address that, today I will work through an example of starting with a ...
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simmer 3.0.0 is on CRAN

November 16, 2015 | FishyOperations

I’m very pleased to announce the first CRAN release of simmer. (https://cran.rstudio.com/web/packages/simmer/). This release has been realised thanks to the efforts made by Iñaki. To reiterate a bit, simmer is a discrete-event simulation (DES) package for R. It is the first R ... [Read more...]

Polar Circles

November 16, 2015 | aschinchon

You cannot find peace by avoiding life (Virginia Woolf) Combining polar coordinates, RColorBrewer palettes, ggplot2 and a simple trigonometric function to define the width of the tiles is easy to produce nice circular plots like these: Do you want to try? Here you have the code:
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Aggregate – A Powerful Tool for Data Frame in R

November 16, 2015 | David Kun

This post gives a short review of the aggregate function as used for data.frames and presents some interesting uses: from the trivial but handy to the most complicated problems I have solved with aggregate. Aggregate (data.frame): Technical Overview Aggregate is a function in base R which can, as ...
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Interactive Data Science with R in Apache Zeppelin Notebook

November 16, 2015 | emaasit

Introduction The objective of this blog post is to help you get started with Apache Zeppelin notebook for your R data science requirements. Zeppelin is a web-based notebook that enables interactive data analytics. You can make beautiful data-driven, interactive and collaborative documents with Scala(with Apache Spark), Python(with Apache ...
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Trading Autocorrelation?

November 15, 2015 | quintuitive

Markets are very smart in absorbing and reflecting information. If you think otherwise, try making money by trading. If you are new to it, make sure you don’t bet the house. In other words, markets are efficient. At least most of the time. So then why people trade? The ... [Read more...]

Rcpp 0.12.2: More refinements

November 15, 2015 | Thinking inside the box

The second update in the 0.12.* series of Rcpp is now on the CRAN network for GNU R. As usual, I will also push a Debian package. This follows the 0.12.0 release from late July which started to add some serious new features, and builds upon the 0.12.... [Read more...]

Partools, Recommender Systems and More

November 15, 2015 | matloff

Recently I attended a talk by Stanford’s Art Owen, presenting work done with his student, Katelyn Gao. This talk touched on a number of my interests, both mathematical and computational. What particularly struck me was that Art and Katelyn are applying a very old — many would say very boring — ... [Read more...]

Using htmlwidgets with knitr and Jekyll

November 15, 2015 | Brendan Rocks >> R

A few weeks ago I gave a talk at BARUG (and wrote a post) about blogging with the excellent knitr-jekyll repo. Yihui’s system is fantastic, but it does have one drawback: None of those fancy new htmlwidgets packages seem to work… A few people have run into this. I ... [Read more...]

Wind in Netherlands

November 15, 2015 | Wingfeet

In climate change discussions, everybody talks about temperature. But weather is much more than that. There is at least rain and wind as directly experienced quality, and air pressure as measurable quantity. In the Netherlands, some observation stations have more than a century of daily data on these things. The ... [Read more...]

Wind in Netherlands

November 15, 2015 | Wingfeet

In climate change discussions, everybody talks about temperature. But weather is much more than that. There is at least rain and wind as directly experienced quality, and air pressure as measurable quantity. In the Netherlands, some observation station... [Read more...]

Bioenergetics in R Workshop

November 15, 2015 | fishR Blog

It was just brought to my attention that there will be a workshop at the upcoming Midwest Fish and Wildlife Conference (Grand Rapids, MI) on the Bioenergetics 4.0 shiny app. The announcement from here (where there is a registration link) is ... [Read more...]

Retrieving Data from Google Books with `ngramr`

November 14, 2015 | Daniel

Karl Marx is the most famous founding fathers of modern sociology with a popularity peak in 1975-6, but declining ever since. Introduction Google has a tool for tracking the frequency of words or phrases across its vast collection of scanned texts, the Google Books. The Google Ngram Viewer reports data ...
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4 Tips to Learn More About ACS Data

November 14, 2015 | Ari Lamstein

One of the highlights of my recent east coast trip was meeting Ezra Haber Glenn, the author of the acs package in R. The acs package is my primary tool for accessing census data in R, and I was grateful to spend time with its author. My goal was to ... [Read more...]

Correlation and Linear Regression

November 14, 2015 | Lionel Hertzog

Before going into complex model building, looking at data relation is a sensible step to understand how your different variable interact together. Correlation look at trends shared between two variables, and regression look at causal relation between a predictor (independent variable) and a response (dependent) variable. Correlation As mentioned above ... [Read more...]

James Bond movies

November 14, 2015 | Christoph Safferling

James Bond: Do you expect me to talk? Auric Goldfinger: No, Mr. Bond, I expect you to die! James Bond I’m a big James Bond fan, so naturally I went to watch the new Bond movie Spectre which – spoiler alert! – is pretty bad. It also got... [Read more...]

James Bond movies

November 14, 2015 | Christoph Safferling

James Bond: Do you expect me to talk? Auric Goldfinger: No, Mr. Bond, I expect you to die! James Bond I’m a big James Bond fan, so naturally I went to watch the new Bond movie Spectre which – spoiler alert! – is pretty bad. It also got me to reminice ... [Read more...]

Web Scraping: The Sequel | Propwall.my

November 13, 2015 | screenshotguy

Alright. Time to take another shot at web scraping. My attempt at scraping data off iBilik.my left me a little frustrated because of how long it took, and also at how i couldn’t get much information because of all the duplicated … Continue reading →
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