February 2015

Tips & Tricks 6: Exploring Data for Outliers

February 17, 2015 | 0 Comments

Geomorph users,A new function in geomorph 2.1.3 allows the user to explore Procrustes superimposed data for outliers (plotOutliers). Here I shall provide a few example for loops to demonstrate how you can explore your data for outliers prior to analyse... [Read more...]

Geomorph update 2.1.3 Now Available!

February 17, 2015 | 0 Comments

Geomorph users,We have uploaded version 2.1.3 to CRAN. The windows and mac binaries have been compiled and the tarball is available.NOTE: Version 2.1.3 has a small bug in readland.tps()that unfortunately slipped through the cracks. So yo... [Read more...]

Reading Arduino data directly into R

February 17, 2015 | 0 Comments

I have experimented with reading an Arduino signal into R in the past, using Rserve and Processing. Actually, it is much easier. I can read the output of my Arduino directly into R with the scan function. Here is my temperature sensor example again:And all it needs to read ...
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Introducing js: tools for working with JavaScript in R

February 16, 2015 | 0 Comments

A new package has appeared on CRAN called js. This package implements bindings to several popular JavaScript libraries for validating, reformating, optimizing and analyzing JavaScript code. It builds on the V8 engine, the fully standalone JavaScript engine in R. Syntax Validation Several R packages allow the user to supply JavaScript ...
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An R tutorial for Microsoft Excel users

February 16, 2015 | 0 Comments

If you currently use a spreadsheet like Microsoft Excel for data analysis, you might be interested in taking a look at this tutorial on how to transition from Excel to R by Tony Ojeda. The tutorial explains how to use R functions in place of Excel formulas, including tools like =... [Read more...]

SAS to R Migration

February 16, 2015 | 0 Comments

By Andy Nicholls, Head of Consulting (UK) Why do it? Mango has been involved in an increasing number of engagements where customers are seeking to migrate from SAS to R.  There are a number of different business drivers for these … Continue reading → [Read more...]

Customer segmentation – LifeCycle Grids with R

February 16, 2015 | 0 Comments

I want to share a very powerful approach for customer segmentation in this post. It is based on customer’s lifecycle, specifically on frequency and recency of purchases. The idea of using these metrics comes from the RFM analysis. Recency and frequency are very important behavior metrics. We are interested ...
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Mapping the world with tweets

February 16, 2015 | 0 Comments

A few days ago, I collected 30 minutes of tweets all around the world. I used the twitteR and streamR packages for this. The nice thing about those tweets is that they have geo-information associated with them. Not all of them, of course, but more than enough.Let's see, what happens ...
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12 nifty tips for scientists who use computers

February 16, 2015 | 0 Comments

Simple things are good. Here is a list of 12 things that I find simple and useful, yet not many of my colleagues use them. The list is R-biased. Knitr. Intuitive tool to integrate R and text to make reports with fancy fonts, figures, syntax-highlighted R code and equations. If … Continue ... [Read more...]

How-to go parallel in R – basics + tips

February 16, 2015 | 0 Comments

Today is a good day to start parallelizing your code. I've been using the parallel package since its integration with R (v. 2.14.0) and its much easier than it at first seems. In this post I'll go through the basics for implementing parallel computations in R, cover a few common pitfalls, ... [Read more...]
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