Commuting between districts and cities in New Zealand At this year’s New Zealand Statisticians Association conference I gave a talk on Modelled Territorial Authority Gross Domestic Product. One thing I’d talked about was the impact on the estimates of people residing in one Territorial Authority (district or city) ... [Read more...]

[Read more...]

Plotly is a platform for making, editing, and sharing customizable and interactive graphs. Embedding Plotly graphs in a R-Markdown document is very easy. Here, we will genarate a R-Markdown document with embedded Plotly charts to visualize regression diagnostic plots similar to the ones generated by using plot() on a fitted ... [Read more...]

As R programming language becoming popular more and more among data science group, industries, researchers, companies embracing R, going forward I will be writing posts on learning Data science using R. The tutorial course will include topics on data types of R, handling data using R, probability theory, Machine Learning, ... [Read more...]

by Joseph Rickert The following map of all of the R user groups listed in Microsoft's Local R User Group Directory is good way to visualize the R world as we rocket into 2016. As a member of the useR!2016 planning committee, foremost in my mind right now is that in ... [Read more...]

My notebook is dead until I buy a new battery. Now I'm using a lent MacBook Pro for urgent work and I had to install R, RStudio and Stata. After doing the basics I've realised a lot of things weren't working as they were on my laptop. This blog is ... [Read more...]

Last week the latest version of simmer was released on CRAN: v3.1.1. This version allows adding attributes to arrivals (and basing decisions on their values). Also, the rollback activity was introduced, enabling you to roll back a trajectory with n steps. In addition, a new priority param for the seize() ... [Read more...]

A Flower That Fits the Bill Marketing borrows the biological notion of coevolution to explain the progressive "fit" between products and consumers. While evolutionary time may seem a bit slow for product innovation and adoption, the same metaphor can be found in models of assimilation and accommodation from cultural and ... [Read more...]

A Flower That Fits the BillMarketing borrows the biological notion of coevolution to explain the progressive "fit" between products and consumers. While evolutionary time may seem a bit slow for product innovation and adoption, the same metaphor can be... [Read more...]

[Read more...]

I’m doing an analysis and one of the objects I’m working on is a multidimensional array called “attitude.” I took a quick look: __ dim(attitude) [1] 30 7 Huh? It’s not supposed to be 30 x 7. Whassup? I search through my scripts for a “attitude” but all I find is the ... [Read more...]

by Andrie de Vries Have you noticed that most R help does not contain any images? Historically, this was for a good reason: most programming language help assumes that you use the system on a text-only system, e.g. a headless linux server. If your system has no graphical capabilities, ... [Read more...]

I work with R on both Mac OS and Windows. On Windows, you get the option to copy the path of a file or folder by holding Shift while right-clicking on the file or folder. As useful as this feature is, it copies paths to your clipboard in Windows format, ... [Read more...]

I work with R on both Mac OS and Windows. On Windows, you get the option to copy the path of a file or folder by holding Shift while right-clicking on the file or folder. As useful as this feature is, it copies paths to your clipboard in Windows format... [Read more...]

Base R's stringsAsFactors default setting is supposedly the most often complained about piece of code in the whole R infrastructure. A search through the source code of all CRAN packages in December 2015 (Link) resulted in 3,492 mentions of stringsAsFactors. Most of the time these explicit mentions where found within calls to ... [Read more...]

tl;dr Sublime Text is a powerful text editor. Here I introduce how to add custom REPL config for remote/local R, Python, Scala, Spark, Hive, you name it (this is only tested for OS X). The example below interprets local Python (top), R (middle) an... [Read more...]

tl;dr Sublime Text is a powerful text editor. Here I introduce how to add custom REPL config for remote/local R, Python, Scala, Spark, Hive, you name it (this is only tested for OS X). The example below interprets local Python (top), R (middle) and Hive (bottom) code on ... [Read more...]

[Read more...]

These 6 visualizations were created in Plotly between 2014 and 2016 and are in some way related to machine learning. They were created using Plotly’s free and open-source graphing libraries for Python and R. 1. machine learning classifier comparison Made in Python by Étienne Tétreault-Pinard View the interactive version 2. COUNRIES WHERE AI ... [Read more...]

Detecting fraudulent transactions is a key applucation of statistical modeling, especially in an age of online transactions. R of course has many functions and packages suited to this purpose, including binary classification techniques such as logistic regression. If you'd like to implement a fraud-detection application, the Cortana Analytics gallery features ... [Read more...]