Why the Ban on P-Values? And What Now?

March 6, 2015
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Why the Ban on P-Values? And What Now?

Just recently, the editors of the academic journal Basic and Applied Social Psychology have decided to ban p-values: that’s right, the nexus for inferential decision making… gone! This has created quite a

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Getting Data From An Online Source

March 6, 2015
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Getting Data From One Online SourceRobert NorbergHello world. It’s been a long time since I posted anything here on my blog. I’ve been busy getting my Masters degree in...

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Text bashing in R for SQL

March 6, 2015
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Fairly often, a coworker who is strong in Excel, but weak in writing code will come to me for help in special details about customers in their datasets. Sometimes...

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Generating an academic CV with R and YAML

March 6, 2015
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Generating an academic CV with R and YAML

Follow Email For the past couple years, I’ve been using Kieran Healy’s lovely template for my academic CV. Kieran’s code is a customised *.tex file which, of course, has...

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Welcome to the Hadleyverse

March 6, 2015
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It's fair to say that Hadley Wickham, chief scientist at RStudio and a new member of the R Foundation, has made great contributions to the R community. Not only...

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Visualising a Classification in High Dimension

March 6, 2015
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Visualising a Classification in High Dimension

So far, when discussing classification, we’ve been playing on my toy-dataset (actually, I should no claim it’s mine, it is inspired by the one used in the introduction of...

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Rcpp 0.11.5

March 6, 2015
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The new release 0.11.5 of Rcpp just reached the CRAN network for GNU R, and a Debian package has also been be uploaded. Rcpp has...

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Bio7 Overview Video

March 6, 2015
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06.03.2015 For the upcoming EclipseCon 2015 where I present the Bio7 application I created an overview video (see below) which summarizes some of the main Bio7 functionality. This time...

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Beautiful tables for linear model summaries #rstats

March 6, 2015
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Beautiful tables for linear model summaries #rstats

Beautiful HTML tables of linear models In this blog post I’d like to show some (old and) new features of the sjt.lm function from my sjPlot-package. These functions are...

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How to shoot yourself in the foot with various statistical philosophies

March 6, 2015
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I've long been a fan of "How to shoot yourself in the foot" jokes. Having shot myself in the foot with different programming languages -- particularly with C -- I...

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R Basics at Simple Talk

March 5, 2015
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R Basics at Simple Talk

News that Microsoft will acquire Revolution Analytics has raised interest about R among SQL Server and .NET developers and administrators.  Simple-Talk is an online technical journal and hub for a...

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View package downloads over time with Shiny

March 5, 2015
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View package downloads over time with Shiny

Almost everyone with an R package in CRAN wonders how often it’s installed and used. Two years ago RStudio kindly started offering anonymized logs of their downloads from...

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Brand and Product Category Representation: Precursors to Preference Construction

March 5, 2015
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Brand and Product Category Representation: Precursors to Preference Construction

Evidently, preference is contextual, or so The Hershey's Company claims in their advertising. I agree and will not repeat the argument made in a previous post on incorporating preference...

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Supervised Classification, beyond the logistic

March 5, 2015
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Supervised Classification, beyond the logistic

In our data-science class, after discussing limitations of the logistic regression, e.g. the fact that the decision boundary line was a straight line, we’ve mentioned possible natural extensions. Let...

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Very gentle resource for speeding up R code

March 5, 2015
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Very gentle resource for speeding up R code

Nathan Uyttendaele has written a great beginner’s guide to speeding up your R code. Abstract: Most calculations performed by the average R user are unremarkable in the sense that...

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Is Time Series Clustering Meaningless? (lots of dplyr)

March 5, 2015
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A kind reader directed me in a comment on Experiments in Time Series Clustering to this paper. Clustering of Time Series Subsequences is Meaningless: Implications for Previous and...

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New R course on Coursera: Data Analysis & Statistical Inference

March 5, 2015
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New R course on Coursera: Data Analysis & Statistical Inference

This week a new session of Data Analysis and Statistical Inference, taught by Doctor Mine Çetinkaya-Rundel from Duke university, has started on Coursera. Just like with the previous runs,...

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R User Group Activity

March 5, 2015
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R User Group Activity

by Joseph Rickert R user group activity is still on the rise. The following plot of the number of R user group meetings listed on Revolution Analytics' Community Calendar...

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Rapid Non-Compartmental Analysis

March 5, 2015
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Mango Solutions releases version 1.0 of RapidNCA Chippenham, Wiltshire, UK – 5th March 2015 – Mango Solutions are pleased to announce the release of version 1.0 of RapidNCA, an...

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Part 3a: Plotting with ggplot2

March 4, 2015
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Part 3a: Plotting with ggplot2

We will start off this first section of Part 3 with a brief introduction of the plotting system ggplot2. Then, with the attention focused mainly on the syntax, we...

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Color extraction with R

March 4, 2015
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Color extraction with R

Given all the attention the internet has given to the colors of this dress, I thought it would be interesting to look at the capabilities for extracting colors in...

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haven 0.1.0

March 4, 2015
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haven 0.1.0

I’m pleased to announced that the new haven package is now available on CRAN. Haven makes it easy to read data from SAS, SPSS and Stata. Haven has the...

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ASA DataFest 2015 at UCLA

What is DataFest? DataFest is a team competition, where a team of up to 5...

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How to Speak Data Science

March 4, 2015
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How to Speak Data Science

Data Science has its own language. So, if you want to have at least a slight chance of surviving in the enterprise world of tomorrow -with its obsessive focus...

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A modular Rmarkdown workbook in action I’m now using a…

March 4, 2015
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A modular Rmarkdown workbook in action

I’m now using a…

A modular Rmarkdown workbook in action I’m now using a properly modular Rmarkdown workbook, and really quite chuffed with it! I’ve seen discussion of electronic...

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Creating an Analytics Ecosystem by integrating ModSpace and RStudio Server Professional

March 4, 2015
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By Richard Pugh – Commercial Director, (UK). As the importance of using analytics to drive decision making continues to grow at pace, so too does the need to make...

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Extracting the original data from a heatmap image

March 4, 2015
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Extracting the original data from a heatmap image

The paper Analysis of the Linux Kernel Evolution Using Code Clone Coverage analysed 136 versions of Linux (from 1.0 to 2.6.18.3) and calculated the amount of source code that...

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Supervised Classification, discriminant analysis

March 3, 2015
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Supervised Classification, discriminant analysis

Another popular technique for classification (or at least, which used to be popular) is the (linear) discriminant analysis, introduced by Ronald Fisher in 1936. Consider the same dataset as...

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JASP

March 3, 2015
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JASP is an interesting project. It is based on R with additional facilities and functions such as automatic table generation. There appears to be an R package that provide...

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