2015

Securely storing your secrets in R code

December 16, 2015 | Andrie de Vries

by Andrie de Vries Last month I wrote about How to store and use webservice keys and authentication details, a summary of the options mentioned in a twitter discussion started by Jennifer Bryan. All of the options in my article really stored the secrets in plain text somewhere on your ... [Read more...]

Upgrade R on Windows with the installr Package

December 16, 2015 | Kris Eberwein

It’s that time again—time for a new R version! The latest version 3.2.3 “Wooden Christmas Tree” is a small upgrade for most, but a huge step for Windows users. Of the new features included in Wooden, half of them are Windows-specific. Several months back I wrote a tutorial on ... [Read more...]

mapview 1.0.0 now on CRAN

December 16, 2015 | Tim Salabim

we are happy to announce that mapview 1.0.0 has been released on CRAN. Together with Florian Detsch (R, Rcpp), Christoph Reudenbach (js) and Stefan Woellauer (js) we have put together a powerful tool for on-the-fly mapping of spatial data during … Continue reading → [Read more...]

Big Data Insights – IT Support Log Analysis

December 16, 2015 | Pradeep Mavuluri

This post brings forth to the audience, few glimpses (strictly) of insights that were obtained from a case of how predictive analytic's helped a fortune 1000 client to unlock the value in their huge log files of the IT Support system. Going to quick background, a large organization was interested in ... [Read more...]

use emoji font in R

December 15, 2015 | R on Guangchuang Yu

I have played with emoji in R for a while. My solution of using it is different from what implemented in emoGG. emoGG is a good attemp to add emoji in ggplot2. It render emoji picture (png) and creat a layer, geom_emoji, to add emoji. In my opinion, emoji ...
[Read more...]

Tidal Amplification – Chesapeake versus Delaware

December 15, 2015 | AdventuresInData

In the Delaware Estuary, the tidal range at the mouth of the estuary becomes amplified, resulting in a larger range (difference between high and low tide water surface elevation) further up the estuary.  One way to visualize this effect is via violin plots.  The data below is from the NOAA ... [Read more...]

An Easy Start with Jekyll, for R-Bloggers

December 15, 2015 | R Contour - R

I would like my upper-level students to get more practice in writing about their data analysis work (well, to get get more practice in writing, generally). Blogging is one device by which students can be motivated to write carefully, with a particular audience in mind. So why not have students ... [Read more...]

R and Python: Theory of Linear Least Squares

December 15, 2015 | Al Asaad

In my previous article, we talked about implementations of linear regression models in R, Python and SAS. On the theoretical sides, however, I briefly mentioned the estimation procedure for the parameter $\boldsymbol{\beta}$. So to help us understand how software does the estimation procedure, we'll look at the mathematics behind ...
[Read more...]

R and Python: Theory of Linear Least Squares

December 15, 2015 | Al-Ahmadgaid Asaad

In my previous article, we talked about implementations of linear regression models in R, Python and SAS. On the theoretical sides, however, I briefly mentioned the estimation procedure for the parameter $boldsymbol{beta}$. So to help us understand how software does the estimation procedure, we'll look at the mathematics behind ...
[Read more...]

Missing values

December 14, 2015 | r-exercises

Today we’re training how to handle missing values in a data set. Before starting the exercises, please first read section 2.5 of An Introduction to R. Solutions are available here. Exercise 1 If X [Read more...]

Create blog posts from RStudio to WordPress

December 14, 2015 | jletteboer

In a couple of courses I’ve used RPubs and GitHub for publishing my R code and work. As I have a own website with WordPress I want to blog from R to my own blog instead only through sharing R code via RPubs and GitHub. After searching over the ... [Read more...]

In case you missed it: November 2015 roundup

December 14, 2015 | David Smith

In case you missed them, here are some articles from November of particular interest to R users. You can use emojis as plotting symbols in ggplot2 charts with the emoGG package. A review of local R user group activity in 2015. Giving thanks to the R Core Group. Some best practices ... [Read more...]
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