April, 2017 | R-bloggers

Renthop: predicting interest level for rental listings

April 5, 2017 | Domingos Lopes

Renthop is a New York based apartment listing website. It uses an innovative algorithm to sort and present the listings to the visitors. As part of […] The post Renthop: predicting interest level for rental listings appeared first on NYC Data Science Academy Blog.

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Discrete Event Simulation in R (and, Why R Is Different)

April 5, 2017 | matloff

I was pleased to see the announcement yesterday of simmer 3.61. a discrete-event simulation (DES) package for R. I’ve long had an interest in DES, and as I will explain below, implementing DES in R brings up interesting issues about R that transcend the field of DES. I had been ...

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Understanding the Tucker decomposition, and compressing tensor-valued data (with R code)

April 4, 2017 | Alexej's blog

In many applications, data naturally form an n-way tensor with n __ 2, rather than a “tidy” table. As mentioned in the beginning of my last blog post, a tensor is essentially a multi-dimensional array: a tensor of order one is a vector, which simply is a column of numbers, a tensor ... [Read more...]

Understanding the Tucker decomposition, and compressing tensor-valued data (with R code)

April 4, 2017 | Alexej's blog

In many applications, data naturally form an n-way tensor with n __ 2, rather than a “tidy” table. As mentioned in the beginning of my last blog post, a tensor is essentially a multi-dimensional array: a tensor of order one is a vector, which simply is a column of numbers, a tensor ... [Read more...]

R track on exercism.io

April 4, 2017 | Rstats on Jon Calder

As I’ve said before, when it comes to programming I’m a firm believer in the “learn by doing” approach. exercism.io is a project which exemplifies this. I came across exercism.io earlier this year while exploring GitHub looking for an open source project to contribute to. The ...

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Organizing DataFest the tidy way

April 4, 2017 | R Views

Organizing an event can be a full-time task in and of its own. I have been organizing ASA DataFest for six years at Duke, and over this time, the number of participants has grown from 23 students from Duke only, to 360 students from seven area schools this year! First, a bit ...

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Organizing DataFest the tidy way

April 4, 2017 | R Views

Organizing an event can be a full-time task in and of its own. I have been organizing ASA DataFest for six years at Duke, and over this time, the number of participants has grown from 23 students from Duke only, to 360 students from seven area schools this year! First, a bit ...

[Read more...]

Software for honours students

April 4, 2017 | R on Rob J Hyndman

I spoke to our new crop of honours students this morning. Here are my slides, example files and links. Managing References Mendeley Zotero Paperpile Data analysis and computation Download R Download Rstudio Online R tutorial R packages fo... [Read more...]

Software for honours students

April 4, 2017 | R on Rob J Hyndman

I spoke to our new crop of honours students this morning. Here are my slides, example files and links. Managing References Mendeley Zotero Paperpile Data analysis and computation Download R Download Rstudio Online R tutorial R packages fo... [Read more...]

Software for honours students

April 4, 2017 | Rob J Hyndman

I spoke to our new crop of honours students this morning. Here are my slides, example files and links. Managing References Mendeley Zotero Paperpile Data analysis and computation Download R Download Rstudio Online R tutorial R packages for time series R packages for econometrics R packages for finance Writing your ... [Read more...]

Publish R functions as stored procedures with the sqlrutils package

April 4, 2017 | David Smith

If you've created an R function (say, a routine to clean up missing values in a data set, or a function to make forecasts using a machine learning model), and you want to make it easy for DBAs to use it, it's now possible to publish R functions as a ... [Read more...]

R track on exercism.io

April 4, 2017 | Jon Calder's R Blog

The devil is in the details! - As I’ve said before, when it comes to programming I’m a firm believer in the “learn by doing” approach. exercism.io is a project which exemplifies this. I came across exercism.io earlier this year while ex... [Read more...]

R track on exercism.io

April 4, 2017 | Jon Calder's R Blog

The devil is in the details! - As I’ve said before, when it comes to programming I’m a firm believer in the “learn by doing” approach. exercism.io is a project which exemplifies this. I came across exercism.io earlier this year while ex... [Read more...]

R with GRASS GIS – easiest Munros

April 4, 2017 | mikerspencer

I’ve been having a more sustained play with R and GRASS together. I’ve previously used them, in tandem, for processing satellite images, but haven’t been much further. In this post I’ll look at… Continue reading →

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R – iteratively changing column classes

April 4, 2017 | mikerspencer

When you write an ESRI Shapefile from R, writeOGR assumes your numeric fields are real numbers and so you get a lot of redundant zeros appended. This is misleading and distracting when you… Continue reading → [Read more...]

Visualizing relational joins

April 4, 2017 | John Mount

I want to discuss a nice series of figures used to teach relational join semantics in R for Data Science by Garrett Grolemund and Hadley Wickham, O’Reilly 2016. Below is an example from their book illustrating an inner join: Please read on for my discussion of this diagram and teaching ...

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Doing a Twitter Analysis with R

April 4, 2017 | inside data blog

Recently I took part at Coding Durer, a five days international and interdisciplinary hackathon for art history and information science. The goal of this hackathon is to bring art historians and information scientists together to work on data. It is kind of an extension to the cultural hackathon CodingDaVinci where ...

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Python and R Vie for Top Spot in Kaggle Competitions

April 4, 2017 | Bob Muenchen

I’ve just updated the Competition Use section of The Popularity of Data Science Software. Here’s just that section for your convenience. Competition Use Kaggle.com is a web site that sponsors data science contests. People post problems there along the amount … Continue reading →

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March Monthly Round Up in datacamp.com

April 4, 2017 | DataCamp Blog

March has been a busy month here at DataCamp! We've released 7 courses, 4 DataChats, and 8 articles. Luckily, this round-up post will cover the highlights, in case you missed them. Data Manipulation: Tidy Your Data! We were very excited to relea... [Read more...]

Everybody talks about the weather

April 4, 2017 | Adam Sparks

Everybody talks about the weather, but nobody does anything about it. - Charles Dudley Warner As a scientist who models plant diseases, I use a lot of weather data. Often this data is not available for areas of interest. Previously, I worked with the International Rice Research Institute (IRRI) and ... [Read more...]

R-bloggers

R news and tutorials contributed by hundreds of R bloggers

April 2017

Renthop: predicting interest level for rental listings

Discrete Event Simulation in R (and, Why R Is Different)

Understanding the Tucker decomposition, and compressing tensor-valued data (with R code)

Understanding the Tucker decomposition, and compressing tensor-valued data (with R code)

R track on exercism.io

Organizing DataFest the tidy way

Organizing DataFest the tidy way

Software for honours students

Software for honours students

Software for honours students

Publish R functions as stored procedures with the sqlrutils package

R track on exercism.io

R track on exercism.io

R with GRASS GIS – easiest Munros

R – iteratively changing column classes

Visualizing relational joins

Doing a Twitter Analysis with R

Python and R Vie for Top Spot in Kaggle Competitions

March Monthly Round Up in datacamp.com

Everybody talks about the weather

April 2017

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