TOST equivalence testing R package (TOSTER) and spreadsheet

December 9, 2016
By
TOST equivalence testing R package (TOSTER) and spreadsheet

Where to Go from Here? Tips for Building Up R Experience

December 8, 2016
By
Where to Go from Here? Tips for Building Up R Experience

At the University of Utah, I teach the R lab that accompanies MATH 3070, “Applied Statistics I.”” None of my students are presumed to have any programming experience, and...

Read more »

R Consortium Projects Update

December 8, 2016
By
R Consortium Projects Update

The R Consortium has already funded 8 projects (and 3 more just in July) proposed by the R community, and the call for proposals for yet more projects is...

Read more »

Model Performance in Data Science Live Book

December 8, 2016
By
Model Performance in Data Science Live Book

An overview on error analysis through cross-validation, variance, bias, bootstrapping, accuracy and time dependent predictive models.

Read more »

Matrix Vol. 2 Exercises

Matrix Vol. 2 Exercises

Answers to the exercises are available here. Exercise 1 If M=matrix(c(1:10),nrow=5,ncol=2, dimnames=list(c('a','b','c','d','e'),c('A','B')))...

Read more »

New: Italian and German Translations of Introduction to R

December 8, 2016
By
New: Italian and German Translations of Introduction to R

The team here at DataCamp is thrilled to announce that we now offer free Italian (thanks to Quantide) and German (thanks to eoda) translations of our most popular course, Introduction...

Read more »

Crossed and Nested hierarchical models with STAN and R

December 8, 2016
By
Crossed and Nested hierarchical models with STAN and R

Below I will expand on previous posts on bayesian regression modelling using STAN (see previous instalments here, here, and here). Topic of the day is modelling crossed and nested...

Read more »

Tesseract Update: Options and Languages

December 8, 2016
By

A few weeks ago we announced the first release of the tesseract package: a high quality OCR engine in R. We have now released an update with...

Read more »

RcppAPT 0.0.3

December 7, 2016
By

A new version of RcppAPT -- our interface from R to the C++ library behind the awesome apt, apt-get, apt-cache, ... commands and their cache powering Debian, Ubuntu...

Read more »

Visualizing 15k Instagram Posts with TrelliscopeJS

December 7, 2016
By

This post shows a simple example of creating an interactive display that allows you to navigate thousands of instagram posts with just a few lines of code using TrelliscopeJS....

Read more »

flea circus

December 7, 2016
By
flea circus

An old riddle found on X validated asking for Monte Carlo resolution  but originally given on Project Euler: A 30×30 grid of squares contains 30² fleas, initially one flea...

Read more »

PISA 2015 – how to read/process/plot the data with R

December 7, 2016
By
PISA 2015 – how to read/process/plot the data with R

Yesterday OECD has published results and data from PISA 2015 study (Programme for International Student Assessment). It’s a very cool study – over 500 000 pupils (15-years old) are...

Read more »

2016-15 Automating R Demonstration Videos

December 7, 2016
By

This document describes a proof-of-concept for producing R demonstration videos in a fully-automated manner. The “script” for the video consists of a text file containing code chunks paired with...

Read more »

Microsoft R Server 9.0 now available

December 7, 2016
By
Microsoft R Server 9.0 now available

Microsoft R Server 9.0, Microsoft's R distribution with added big-data, in-database, and integration capabilities, was released today and is now available for download to MSDN subscribers. This latest release...

Read more »

November Package Picks

December 7, 2016
By
November Package Picks

by Joseph Rickert November was a prolific month for R developers: 189 new packages landed in CRAN. I have selected more than a quarter of them for this post,...

Read more »

R-SQL Exercises

December 7, 2016
By
R-SQL Exercises

How to write Structured Query Language (SQL) code in R. Well there are many packages on CRAN that relate to databases. In the exercises below we cover some of...

Read more »

Secret Santa Picker 2 using R

December 7, 2016
By
Secret Santa Picker 2 using R

Last year I made a blog post about a Secret Santa picker HERE, but to use it required quite a bit of messing around with the code. So this...

Read more »

Pipe Dream

December 7, 2016
By
Pipe Dream

Plusses and Arrows and Percents, oh my!. - Do...

Read more »

Using replyr::let to Parameterize dplyr Expressions

December 6, 2016
By
Using replyr::let to Parameterize dplyr Expressions

Imagine that in the course of your analysis, you regularly require summaries of numerical values. For some applications you want the mean of that quantity, plus/minus a standard deviation;...

Read more »

Announcing Riyadh R User Group

December 6, 2016
By
Announcing Riyadh R User Group

Many data analysts in Riyadh (or as much as I have met) still valiantly use Excel and/or SQL to perform analyses. Some engage in SQL gymnastics for the simple operation...

Read more »

the incredible accuracy of Stirling’s approximation

December 6, 2016
By
the incredible accuracy of Stirling’s approximation

The last riddle from the Riddler summed up to find the probability of a Binomial B(2N,½) draw ending up at the very middle, N. Which...

Read more »

DataChats: An interview with Charlotte Wickham

December 6, 2016
By
DataChats: An interview with Charlotte Wickham

Hey R fans! We've just released a new episode of DataCamp's DataChats video series.  In this third episode, we interview Charlotte Wickham. Charlotte is an Assistant Professor in the Department...

Read more »

Select and Query Exercise

December 6, 2016
By
Select and Query Exercise

In this exercise we cover the basics on selecting and extracting data using queries. We add a few other materials into it. This should prepare you for the next...

Read more »

scatterpie for plotting pies on ggplot

December 6, 2016
By
scatterpie for plotting pies on ggplot

Plotting pies on ggplot/ggmap is not an easy task, as ggplot2 doesn’t provide native pie geom. The pie we produced in ggplot2 is actually a barplot transform...

Read more »

dplyrXdf 0.90 now available

December 6, 2016
By

by Hong Ooi, Sr. Data Scientist, Microsoft Version 0.90 of the dplyrXdf package has just been released. dplyrXdf is a package that brings dplyr pipelines and data transformation verbs...

Read more »

Structural Equation Modelling in R (Part 1)

December 6, 2016
By
Structural Equation Modelling in R (Part 1)

Brief explanation Structural Equation Modelling (SEM) is a state of art methodology and fulfills much of broader discusion about statistical modeling, and allows to make inference and causal analysis. SEM...

Read more »

Why time series forecasts prediction intervals aren’t as good as we’d hope

December 6, 2016
By
Why time series forecasts prediction intervals aren’t as good as we’d hope

Five different sources of error When it comes to time series forecasts from a statistical model we have five sources of error: Random individual errors Random estimates of...

Read more »

Optimization matchup: R’s glpkAPI vs Julia’s JuMP

December 5, 2016
By

tl;dr: although I use R every day and love it, doing mathematical programming using Julia is much simpler and more flexible than anything I know that is currently available...

Read more »

Reddit Responds to the Election

December 5, 2016
By
Reddit Responds to the Election

It’s been about a month since the U.S. presidential election, with Donald Trump’s victory over Hillary Clinton coming as a surprise to most. Reddit user Jason Baumgartner collected and...

Read more »

Sponsors

Mango solutions



dominolab webpage



Zero Inflated Models and Generalized Linear Mixed Models with R

Quantide: statistical consulting and training

datasociety

http://www.eoda.de







ODSC

ODSC

CRC R books series





Six Sigma Online Training





Contact us if you wish to help support R-bloggers, and place your banner here.