useR and JSM 2016 conferences: a story in tweets

August 23, 2016
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useR and JSM 2016 conferences: a story in tweets

I was amused by a Guardian article last month that declared “I’m a serious academic, not a professional Instagrammer,” arguing that social media is a distraction for scientific research. This attitude was, to say the least, not popular on academic Twitter, which responded with the #seriousacademic hashtag. When someone tries to claim that a...

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Rborist version 0.1-3 is now available from CRAN

August 23, 2016
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Version 0.1-3 of the Rborist Random Forest package can now be downloaded from CRAN. This version follows closely on the short-lived 0.1-2, which failed to install on...

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GSoC 2016 Report – Rperform

August 23, 2016
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GSoC 2016 Report – Rperform

Developer: Akash Tandon Mentors: Joshua Ulrich, Toby Dylan Hocking Official Project Link: Rperform: performance analysis of R package code This project meant to deal primarily with development of Rperform’s...

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Visualising Residuals

August 23, 2016
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Visualising Residuals

Residuals. Now there’s something to get you out of bed in the morning! OK, maybe residuals aren’t the sexiest topic in the world. Still, they’re an essential element and means...

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New package tokenizers joins rOpenSci

August 23, 2016
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The R package ecosystem for natural language processing has been flourishing in recent days. R packages for text analysis have usually been based on the classes provided by the...

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Integrate Free R Tutorials With Blackboard, Moodle, Canvas & More!

August 22, 2016
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Are you teaching a course this semester that makes use of R? Now you can integrate DataCamp’s free interactive R courses and tutorials with all major learning management systems...

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Matrix Operations Exercises

August 22, 2016
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Matrix Operations Exercises

This set of exercises will help you to learn and test your skill in matrix operations, starting with basic ones like scalar multiplication all the way through eigenvalue and...

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Five great charts in 5 lines of R code each

August 22, 2016
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Five great charts in 5 lines of R code each

Sharon Machlis is a journalist with Computerworld, and to show other journalists how great R is for data visualization she shows them these five data visualizations, each of which...

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A Shiny App for estimating Multiplier Exponent Curves from Manning’s Equation Inputs

August 22, 2016
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A Shiny App for estimating Multiplier Exponent Curves from Manning’s Equation Inputs

WASP and other flow and water quality models ask users to input multiplier and exponent values relating velocity and depth to discharge. These relationships take the form of V=aQ^b...

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Using cranlogs in R with Plotly

August 22, 2016
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In this post we’ll use the cranlogs package to visualize the number of downloads for Plotly’s R API

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The Breathtaking 1-Matrix

August 22, 2016
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The Breathtaking 1-Matrix

La luna sale a caminar siguiendo tus pupilas (Ojos color sol, Calle 13) This is a 5×5 1-matrix: And this is a 20×20 1-matrix visualized: Maybe in some other...

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Five Questions about Data Science

August 21, 2016
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Five Questions about Data Science

From Safari Books Online (https://www.safaribooksonline.com/blog/2016/02/10/data-science-qa/) ---Recently, we were able to ask five questions of Murtaza Haider, about the new book from IBM Press called “Getting Started...

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Gotta catch them all

August 21, 2016
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Gotta catch them all

Introduction When data becomes high-dimensional, the inherent relational structure between the variables can sometimes become unclear or indistinct. One, might want to find clusters for numerous amounts of reasons -...

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RcppEigen 0.3.2.9.0

August 21, 2016
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A new upstream release 3.2.9 of Eigen is now reflected in a new RcppEigen release 0.3.2.9.0 which got onto CRAN late yesterday and is now going...

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The Olympic Medal Table Visualized Gapminder Style

August 20, 2016
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The Olympic Medal Table Visualized Gapminder Style

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The markdown+Rknitr source code of this blog is...

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Manny Parzen Used R!

August 20, 2016
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Manny Parzen Used R!

Prof. Manny Parzen, a pioneer of modern statistics, passed away in February, aged 87. I should have commented back then, but it’s still worth saying something today. I happened...

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Descriptive Statistics Final Project with Python & R

August 20, 2016
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Descriptive Statistics Final Project with Python & R

The post Descriptive Statistics Final Project with Python & R appeared first on Networkx.

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RQuantLib 0.4.3: Lots of new Fixed Income functions

August 19, 2016
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A release of RQuantLib is now on CRAN and in Debian. It contains a lot of new code contributed by Terry Leitch over a number of...

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Visualizing when I’m most productive during the day

August 19, 2016
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Visualizing when I’m most productive during the day

Analyzing my (and others') git activity - Click here to explore the data yourself Yesterday I saw this retweet from @timelyportfolio that links to a gist...

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Five problems (and one solution) with dual-axis time series plots

August 19, 2016
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Five problems (and one solution) with dual-axis time series plots

If you need to present two time series spanning the same period, but in wildly different scales, it's tempting to use a time series chart with two separate vertical...

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vtreat 0.5.27 released on CRAN

August 19, 2016
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Win-Vector LLC, Nina Zumel and I are pleased to announce that ‘vtreat’ version 0.5.27 has been released on CRAN. vtreat is a data.frame processor/conditioner that prepares real-world data for...

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ggplot2 themes examples

August 19, 2016
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ggplot2 themes examples

This short post is exactly what it seems: a showcase of all ggplot2 themes available within the ggplot2 package. I was doing such a list for myself (you know...

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Trading strategy: Making the most of the out of sample data

August 19, 2016
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Trading strategy: Making the most of the out of sample data

When testing trading strategies a common approach is to divide the initial data set into in sample data: the part of the data designed to calibrate the model and out...

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Venn Colors: Happy Bday, John Venn

August 19, 2016
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Venn Colors: Happy Bday, John Venn

Tweet I know that venn diagrams are not as sexy as they used to be and that John Venn’s birthday was actually Aug 4, but venn diagram’s still serve a...

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New banxicoR package

August 18, 2016
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New banxicoR package

The banxicoR package is now available on CRAN. Much like inegiR this package aims to bring official Mexican data easily into R, in this case by scrapping iqy...

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Recurrent Models and Examples with MXNetR

Recurrent Models and Examples with MXNetR

As a new lightweight and flexible deep learning platform, MXNet provides a portable backend, which can be called from R side. MXNetR is an R package that...

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Resource governor and external resource pool for Microsoft R Services

August 18, 2016
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Resource governor and external resource pool for Microsoft R Services

Setting external resource pool for execution of R commands using sp_execute_external_script has proven extremely useful, especially in cases where you have other workers present, when you don’t want to...

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Final Call: Hadley Wickham’s Master R Workshop September 12 and 13 in NYC

August 18, 2016
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Final Call: Hadley Wickham’s Master R Workshop September 12 and 13 in NYC

Want to Master R?  There’s no better time or place if you’re within an easy train, plane, automobile ride or a short jog of Hadley Wickham’s workshop on September...

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Sentiment analysis of Trump’s tweets with R

August 18, 2016
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Sentiment analysis of Trump’s tweets with R

Data Scientist David Robinson caused a bit of a stir in the media when he analyzed Donald Trump's tweets and revealed that those sent from an Android device were...

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