May, 2019 | R-bloggers

Repeated cross-validation in cvms and groupdata2

May 5, 2019 | Ludvig Olsen

I have spent the last couple of days adding functionality for performing repeated cross-validation to cvms and groupdata2. In this quick post I will show an example. In cross-validation, we… Read More → Indlægget Repeated cross-validation in cvms and groupdata2 blev først udgivet på . [Read more...]

Benchmark of popular graph/network packages

May 4, 2019 | Timothy Lin

Benchmark of 5 popular graph/network packages - Networkx, igraph, graph-tool, Networkit and SNAP [Read more...]

Benchmark of popular graph/network packages

May 4, 2019 | Timothy Lin

Benchmark of 5 popular graph/network packages - Networkx, igraph, graph-tool, Networkit and SNAP [Read more...]

Hierarchical Customer Lifetime Value

May 4, 2019 | Brian Callander

Hierarchical Customer Lifetime Value Posted on 5 May, 2019 by Brian Tags: customer lifetime value, recency frequency, hierarchical model, centred parameterisation, non-centred parameterisation, prior-predictive distribution, stan, e-bfmi, energy Category: customer_lifetime_value In a previous post, we described how a model of customer lifetime value (CLV) works, implemented it in Stan, and ... [Read more...]

Benchmark of popular graph/network packages

May 4, 2019 | Timothy Lin

In this post I benchmark the performance of 5 popular graph/network packages. This was inspired by two questions I had: Recently, I have been working with large networks (millions of vertices and edges) and often wonder what is the best currently a...

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rTRNG on CRAN now!

May 4, 2019 | Mirai Solutions

After dwelling happily on our GitHub repositories for an extended period of time, rTRNG has now finally made it to CRAN. We are very happy to get this out just ahead of the R in Finance in Chicago, where the functionality had been show-cased with an applied example two years ...

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Deep (learning) like Jacques Cousteau – Part 2 – Scalars

May 4, 2019 | Hello, world! My name is Justin.

(TL;DR: Scalars are single numbers.)

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Free online r course

May 4, 2019 | matloff

Recently a young relative mentioned that the campus R course she hoped to attend was full. What online alternatives did she have? So, I decided to start one of my own! https://github.com/matloff/fasteR Designed for complete beginners. I now have six lessons up on the site. I ... [Read more...]

Why Use Weight of Evidence?

May 4, 2019 | statcompute

I had been asked why I spent so much effort on developing SAS macros and R functions to do monotonic binning for the WoE transformation, given the availability of other cutting-edge data mining algorithms that will automatically generate the prediction with whatever predictors fed in the model. Nonetheless, what really ...

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How do casinos make money?

May 4, 2019 | sachaepskamp

This blog was written by Sacha Epskamp. In my class on Structural Equation Modeling, I introduce the concepts of expected values and variances through the game of roulette. A french roulette game looks like this: A ball will roll in the left basin and land on one of the 37 values. ... [Read more...]

Fast food, causality and R packages, part 2

May 3, 2019 | Econometrics and Free Software

I am currently working on a package for the R programming language; its initial goal was to simply distribute the data used in the Card and Krueger 1994 paper that you can read here (PDF warning). However, I decided that I would add code to perform...

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RMarkdown Driven Development (RmdDD)

May 3, 2019 | rstats | Emily Riederer

Introduction RMarkdown is an excellent platform for capturing narrative analysis and code to create reproducible reports, blogs, slides, books, and more. One benefit of RMarkdown is its abilities to keep an analyst in the “flow” of their work and to capture their thought process along the way. However, thought processes ...

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Fast food, causality and R packages, part 2

May 3, 2019 | Econometrics and Free Software

I am currently working on a package for the R programming language; its initial goal was to simply distribute the data used in the Card and Krueger 1994 paper that you can read here (PDF warning). However, I decided that I would add code to perform diff-in-diff. In my previous blog ... [Read more...]

Loops! Loops! Loops in R. A Microbenchmark

May 3, 2019 | Nagdev

Loops are the holy grail in data science. You might use it when you want to repeat your task or a function or build a model say “n” times or iterations. There are quite few types of loops and most common ones are for and while. The main difference between ...

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Self-Learning R Language

May 3, 2019 | akhila

R language plays a major role in big data analysis. It is an open source programming language which mainly deals with statistical investigation of data. R can be self- learnt easily with the help of some online courses or books. After installing R and R… Read More The post Self-Learning ... [Read more...]

One Step to Quickly Improve the Readability and Visual Appeal of ggplot Graphs

May 3, 2019 | Michael Toth

There's something wonderful about a graph that communicates a point clearly. You know it when you see it. It's the kind of graph that makes you pause and say 'wow!'. There are all kinds of different graphs that fit this description, but they usually have a few things in ...

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What do machines know about the yield curve?

May 2, 2019 | R on OSM

A recession a year from now? As we saw in the last post, when we run a model with a 6-month look forward, it does a fairly reasonable job in predicting a recession, assuming we use a threshold closer to recession base rate. In this post, we look...

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What do machines know about the yield curve?

May 2, 2019 | R on OSM

A recession a year from now? As we saw in the last post, when we run a model with a 6-month look forward, it does a fairly reasonable job in predicting a recession, assuming we use a threshold closer to recession base rate. In this post, we look at 12-month ...

[Read more...]

Availability of Microsoft R Open 3.5.2 and 3.5.3

May 2, 2019 | David Smith

It's taken a little bit longer than usual, but Microsoft R Open 3.5.2 (MRO) is now available for download for Windows and Linux. This update is based on R 3.5.2, and accordingly fixes a few minor bugs compared to MRO 3.5.1. The main change you will note is that new CRAN packages released ... [Read more...]