January 2018

If at first you don’t succeed…

January 6, 2018 | Jamie Lendrum

After having some time to ponder the issues I was having in my last post, I’m pleased to say that all three are resolved, or at least partially to my immediate satisfaction. First off, I managed to get Netlify to automatically build my website for me, thanks to the ... [Read more...]

Rainbowing a set of pictures

January 6, 2018 | Maëlle Salmon

I’ve now down a few collages from R using magick: the faces of #rstats Twitter, We R-Ladies with Lucy D’Agostino McGowan, and a holiday card for R-Ladies. The faces of #rstats Twitter and holiday card collages were arranged at random, while the We ...
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Dataviz Signup

January 6, 2018 | Kieran Healy

Data Visualization for Social Science will be published later this year by Princeton University Press. You can read a near-complete draft of the book at socviz.co. If you would like to receive one (1) email when the book is available for pre-order, ple... [Read more...]

New wrapr R pipeline feature: wrapr_applicable

January 6, 2018 | John Mount

The R package wrapr now has a neat new feature: “wrapr_applicable”. This feature allows objects to declare a surrogate function to stand in for the object in wrapr pipelines. It is a powerful technique and allowed us to quickly implement a convenient new ad hoc query mode for rquery. ...
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tint 0.0.5

January 6, 2018 | Thinking inside the box

A maintenance release of the tint package arrived on CRAN earlier this week. Its name expands from tint is not tufte as the package offers a fresher take on the Tufte-style for html and pdf presentations. A screenshot of the pdf variant is below. ... [Read more...]

RcppCNPy 0.2.8

January 6, 2018 | Thinking inside the box

A minor maintenance release of the RcppCNPy package arrived on CRAN this week. RcppCNPy provides R with read and write access to NumPy files thanks to the cnpy library by Carl Rogers. There is no code change here. But to process the vignette we rely ... [Read more...]

RQuantLib 0.4.4 for Windows

January 5, 2018 | Joshua Ulrich

I'm pleased to announce that the RQuantLib Windows binaries are now up to 0.4.4!  The RQuantLib pre-built Windows binaries have been frozen on CRAN since 0.4.2, but now you can get version 0.4.4 binaries on Dirk's ghrr drat repo. Installation is as simple as: drat::addRepo("ghrr") # maybe use 'install.packages("drat")' ... [Read more...]

How to perform Logistic Regression, LDA, & QDA in R

January 5, 2018 | Prashant Shekhar

Classification algorithm defines set of rules to identify a category or group for an observation. There is various classification algorithm available like Logistic Regression, LDA, QDA, Random Forest, SVM etc. Here I am going to discuss Logistic regression, LDA, and QDA. The classification model is evaluated by confusion matrix. This ...
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StanCon is next week, Jan 10-12, 2018

January 4, 2018 | andrew

It looks pretty cool! Wednesday, Jan 10 Invited Talk: Predictive information criteria in hierarchical Bayesian models for clustered data. Sophia Rabe-Hesketh and Daniel Furr (U California, Berkely) 10:40-11:30am Does the New York City Police Department rely on quotas? Jonathan Auerbach (Columbia U) 11:30-11:50am Bayesian estimation of mechanical elastic constants. ... [Read more...]

StanCon is next week, Jan 10-12, 2018

January 4, 2018 | andrew

It looks pretty cool! Wednesday, Jan 10 Invited Talk: Predictive information criteria in hierarchical Bayesian models for clustered data. Sophia Rabe-Hesketh and Daniel Furr (U California, Berkely) 10:40-11:30am Does the New York City Police Department rely on quotas? Jonathan Auerbach (Columbia U) 11:30-11:50am Bayesian estimation of mechanical elastic constants. ... [Read more...]

StanCon is next week, Jan 10-12, 2018

January 4, 2018 | andrew

It looks pretty cool! Wednesday, Jan 10 Invited Talk: Predictive information criteria in hierarchical Bayesian models for clustered data. Sophia Rabe-Hesketh and Daniel Furr (U California, Berkely) 10:40-11:30am Does the New York City Police Department rely on quotas? Jonathan Auerbach (Columbia U) 11:30-11:50am Bayesian estimation of mechanical elastic constants. ... [Read more...]
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