August 2016

Mapping Traffic Fatalities

August 31, 2016 | 0 Comments

On Monday, August 29, DJ Patil, the Chief Data Scientist in the White House Office of Science and Technology Policy, and Mark Rosekind, the Administrator of the National Highway Traffic Safety Administration (NHTSA), announced the release of a data set...
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Simulation models of epidemics using R and simecol

August 31, 2016 | 0 Comments

In this post we'll dip our toes into the waters of epidemological dynamics models, using R and simecol, as we have done in the previous two posts of this series. These models of epidemics are interesting in that they introduce us to a more general class of models called compartment ... [Read more...]

forcats 0.1.0 ????

August 31, 2016 | 0 Comments

I’m excited to announce forcats, a new package for categorical variables, or factors. Factors have a bad rap in R because they often turn up when you don’t want them. That’s because historically, factors were more convenient than character vectors, as discussed in stringsAsFactors: An unauthorized biography ...
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Fundamental and Technical Analysis of Shares Exercises

August 31, 2016 | 0 Comments

In this set of exercises we shall explore possibilities for fundamental and technical analysis of stocks offered by the quantmod package. If you don’t have the package already installed, install it using the following code: install.packages("quantmod") and load it into the session using the following code: library("... [Read more...]

How to Check Data Quality using R

August 31, 2016 | 0 Comments

  By Milind Paradkar Do You Use Clean Data? Always go for clean data! Why is it that experienced traders/authors stress this point in their trading articles/books so often? As a novice trader, you might be using the freely available data from sources like Google or Yahoo finance. Do ... [Read more...]

ggtree for microbiome data

August 31, 2016 | 0 Comments

ggtree can parse many software outputs and the evolution evidences inferred by these software can be used directly for tree annotation. ggtree not only works as an infrastructure that enables evolutionary data that inferred by commonly used software packages to be used in R, but also serves as a general ...
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ubeR: A Package for the Uber API

August 31, 2016 | 0 Comments

Uber exposes an extensive API for interacting with their service. ubeR is a R package for working with that API which Arthur Wu and I put together during a Hackathon at iXperience. Installation The package is currently hosted on GitHub. Installation is simple using the devtools package. Authentication To work ...
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A map of elevators in NYC

August 30, 2016 | 0 Comments

Not too long ago, I came across a random tweet pointing to a GitHub repository full of miscallaneous datasets. I was imemdiately excited by the various data science and visualization problems tha I could take on and immediately decided to get my hand... [Read more...]

The R community is awesome (and fast)

August 30, 2016 | 0 Comments

Recently I whined/whinged or generally complained about a few sharp edges in some powerful R systems. In each case I was treated very politely, listened to, and actually got fixes back in a very short timeframe from volunteers. That is really great and probably one of the many reasons ... [Read more...]

Florid’AISTATS

August 30, 2016 | 0 Comments

The next AISTATS conference is taking place in Florida, Fort Lauderdale, on April 20-22. (The website keeps the same address one conference after another, which means all my links to the AISTATS 2016 conference in Cadiz are no longer valid. And that the above sunset from Florida is named… cadiz.jpg!) ...
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2016-11 The Butterfly Affectation

August 30, 2016 | 0 Comments

This report documents a variety of approaches to including an external vector image within an R plot. The image presents particular challenges because it contains features that are not natively supported by the R graphics system, which makes it hard fo... [Read more...]

2016-11 The Butterfly Affectation

August 30, 2016 | 0 Comments

This report documents a variety of approaches to including an external vector image within an R plot. The image presents particular challenges because it contains features that are not natively supported by the R graphics system, which makes it hard … Continue reading → [Read more...]

R Courses at London, Leeds and Newcastle

August 30, 2016 | 0 Comments

Over the next few months we’re running a number of R courses at London, Leeds and Newcastle. September 2016 (Newcastle) Sept 12th: Introduction to R Sept 13th: Statistical modelling Sept 14th: Programming with R Sept 15th: Efficient R: speeding up your code Sept 16th: Advanced graphics October 2016 (London) Oct 3rd: ...
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Benford’s Law Graphed in R

August 30, 2016 | 0 Comments

Using R to replicate Sara Silverstein's post at BusinessInsider.comA first-year student near and dear to my heart at the Kellogg School of Management thought I would be interested in this Business Insider story by Sara Silverstein on Benford’s Law....
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2 y-axis plotting

August 29, 2016 | 0 Comments

A simple plotting feature we need to be able to do with R is make a 2 y-axis plot. First let’s grab some data using the built-in beaver1 and beaver2 datasets within R. Go ahead and take a look at the data by typing it into R as I have ...
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Desktop in the Cloud

August 29, 2016 | 0 Comments

I just wanted to share the good experience I have had with creating a virtual personal desktop on Paperspace. A few months ago I started researching whether there was anyone out there providing this service. Paperspace came up in the search but their service was not yet available. But, to ... [Read more...]

RProtoBuf 0.4.5: now with protobuf v2 and v3!

August 29, 2016 | 0 Comments

A few short weeks after the 0.4.4 release of RProtoBuf, we are happy to announce a new version 0.4.5 which appeared on CRAN earlier today. RProtoBuf provides R bindings for the Google Protocol Buffers ("Protobuf") data encoding library used and released by Google, and deployed as a language and operating-system agnostic protocol ... [Read more...]

RClimate Script to Assess Local Hot Day Trends

August 29, 2016 | 0 Comments

There is ample evidence of global climate change, these are just a few examples  (here, here, here). While global indicators are important to focus attention on the problem and solutions, local data is important to help us understand the situation … Continue reading →
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tibble 1.2.0

August 29, 2016 | 0 Comments

We’re proud to announce version 1.2.0 of the tibble package. Tibbles are a modern reimagining of the data frame, keeping what time has shown to be effective, and throwing out what is not. Grab the latest version with: install.packages("tibble") This is mostly a maintenance release, with the following ...
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