## stringr 1.1.0

August 24, 2016
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I’m pleased to announce version 1.1.0 of stringr. stringr makes string manipulation easier by using consistent function and argument names, and eliminating options that you don’t need 95% of the time. To get started with stringr, check out the strings chapter in R for data science. Install it with: install.packages("stringr") This release is mostly bug fixes, but there

## How to evaluate R models in Azure Machine Learning Studio

August 24, 2016
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Azure Machine Learning Studio is a GUI-based integrated development environment for constructing and operationalizing machine learning workflows. The basic computational unit of an Azure ML Studio workflow (or Experiment)...

## Edward Tufte Keynote Presenter at Data Science Summit, Sep 26-27

August 23, 2016
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I'm excited to share that one of my data science heroes will be a presenter at the Microsoft Data Science Summit in Atlanta, September 26-27. Edward Tufte, the data...

## useR and JSM 2016 conferences: a story in tweets

August 23, 2016
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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...

## 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...

## 10 Reasons why you can’t miss this years EARL Conference in London

August 23, 2016
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On September 13th-15th Mango Solutions are running the EARL ( Effective Applications of the R Language) Conference for all users, enthusiasts and beginners of the R programming...

## GSoC 2016 Report – Rperform

August 23, 2016
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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...

## Visualising Residuals

August 23, 2016
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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...

## 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...

## 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...

## Matrix Operations Exercises

August 22, 2016
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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...

## Five great charts in 5 lines of R code each

August 22, 2016
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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...

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

August 22, 2016
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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...

## 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

## 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...

## Five Questions about Data Science

August 21, 2016
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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...

## Gotta catch them all

August 21, 2016
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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 -...

## 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...

August 20, 2016
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## Manny Parzen Used R!

August 20, 2016
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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...

## Descriptive Statistics Final Project with Python & R

August 20, 2016
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The post Descriptive Statistics Final Project with Python & R appeared first on Networkx.

## 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...

## Visualizing when I’m most productive during the day

August 19, 2016
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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...

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

August 19, 2016
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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...

## 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...

## ggplot2 themes examples

August 19, 2016
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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...

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

August 19, 2016
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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...

## Venn Colors: Happy Bday, John Venn

August 19, 2016
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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...

## New banxicoR package

August 18, 2016
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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...