A post on StackOverflow asked about using a continuous variable for the x-axis (vs dates) in my streamgraph package. While I provided a workaround for the question, it helped me bump up the priority for adding support for continuous x axis scales. With the DBIR halfway behind me now, I ... [Read more...]

Dear all,Click on the github site to see my new post. It is about a new alternative measure to compare difference between performance between two interventions.Any comments, criticisms are welcomeDr Suman Kumar Pramanik(@sumankumarpram1) [Read more...]

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I have been using R for some time now and still can find it frustrating to work with. Over the years have come to the conclusion that it is primarily due to the documentation being bad. I offer no actual solutions here, but thought I would try and write down ... [Read more...]

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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 statistical computing and I haven’t had much free time to blog. But I’ve writing R code as ... [Read more...]

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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 the reason is to call, email, or snail mail a survey, … Continue reading → [Read more...]

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 the virtue of simplicity. All a person needs to do is update it with glorious achievements from time ... [Read more...]

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 is he the author of several R-related books including Advanced R, Hadley is also the author of dozens of R packages ... [Read more...]

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 Boosting, by Robert Schapire and Yoav Freund). But in ral life, there are more observations, and more explanatory variables.... [Read more...]

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 become the most popular way of enhancing GNU R with C++ code. As of today, 345 packages on CRAN depend on Rcpp for making analyses go faster ... [Read more...]

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 the Eclipse Con is co-located with the FOSS4G. So many interesting things will be presented at one place. If you find the ... [Read more...]

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 currently only implemented in the development snapshot on GitHub. A package update is planned to be submitted soon to ... [Read more...]

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 was thinking about how one might shoot oneself in the foot with various statistical ... [Read more...]

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 community of such users.  I just wrote a... [Read more...]

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 their CRAN mirror, which allows one to graph the number of downloads over time. Much easier than downloading and processing all ... [Read more...]

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 construction into the choice modeling process.Within the framewor... [Read more...]