May 2019

RcppAnnoy 0.0.12

May 12, 2019 | Thinking inside the box

A new release of RcppAnnoy is now on CRAN. RcppAnnoy is the Rcpp-based R integration of the nifty Annoy library by Erik. Annoy is a small and lightweight C++ template header library for very fast approximate nearest neighbours—originally developed ... [Read more...]

Faster Way to Slice Dataframe by Row

May 12, 2019 | statcompute

When we’d like to slice a dataframe by row, we can employ the split() function or the iter() function in the iterators package. By leveraging the power of parallelism, I wrote an utility function slice() to faster slice the dataframe. In the example shown below, the slice() is 3 times ... [Read more...]

Virtual Morel Foraging with R

May 12, 2019 | R Views

Bryan Lewis is a mathematician, R developer and mushroom forager.                               Morchella Americana by Bryan W. Lewis, see https://ohiomushroomsociety.wordpress.com/ It’s that time of year again, when people in the Midwestern US go nuts for morel mushrooms. Although fairly common in Western Pennsylvania, Ohio, Indiana, Illinois, Wisconsin, and, ...
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Quick Hit: Updates to QuickLookR and {rdatainfo}

May 12, 2019 | hrbrmstr

I’m using GitUgh links here b/c the issue was submitted there. Those not wishing to be surveilled by Microsoft can find the macOS QuickLook plugin project and {rdatainfo} project in SourceHut and GitLab (~hrbrmstr and hrbrmstr accounts respectively). I hadn’t touched QuickLookR???? or {rdatainfo}???? at all since 2016 ...
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Earthquake Analysis (3/4): Visualizing Data on Maps

May 12, 2019 | Giorgio Garziano

Interested in guest posting? We would love to share your codes and ideas with our community. Categories Basic Statistics Tags Data Visualisation ggplot2 Maps R Programming Tips & Tricks This is the third part of our post series about the exploratory analysis of a publicly available dataset reporting earthquakes and similar ...
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Make it explainable!

May 12, 2019 | smarterpoland

Most people make the mistake of thinking design is what it looks like… People think it’s this veneer — that the designers are handed this box and told, ‚Make it look good!’ That’s not what we think design is. It’s not just what it looks like and feels ... [Read more...]

Gamma Process Prior for Semiparametric Survival Analysis

May 11, 2019 | R on

Motviation The Gamma Process Prior Independent Hazards Correlated Hazards Heads up: equations may not render on blog aggregation sites. See original post here for good formatting. If you like this post, you can follow me on twitter. Motviation Suppose we observe survival/event times from some distribution \[T_{i\in1:... [Read more...]

Gamma Process Prior for Semiparametric Survival Analysis

May 11, 2019 | R on

Motviation The Gamma Process Prior Independent Hazards Correlated Hazards Heads up: equations may not render on blog aggregation sites. See original post here for good formatting. If you like this post, you can follow me on twitter. Motviation Suppose we observe survival/event times from some distribution \[T_{i\in1:... [Read more...]

Gamma Process Prior for Semiparametric Survival Analysis

May 11, 2019 | R on

Motviation The Gamma Process Prior Independent Hazards Correlated Hazards Heads up: equations may not render on blog aggregation sites. See original post here for good formatting. If you like this post, you can follow me on twitter. Motviation Suppose we observe survival/event times from some distribution \[T_{i\in1:... [Read more...]

RcppArmadillo 0.9.400.3.0

May 11, 2019 | Thinking inside the box

The recent 0.9.400.2.0 release of RcppArmadillo required a bug fix release. Conrad follow up on Armadillo 9.400.2 with 9.400.3 – which we packaged (and tested extensively as usual). It is now on CRAN and will get to Debian shortly. Armadillo is a ... [Read more...]

winedApp: Wine Recommendation and Data Analysis Web App

May 11, 2019 | Alexander Sigman

About  Don't wind up with the wrong wine at the wrong time: unwind with the world's best! winedApp provides insights into prices, ratings, descriptions, and geographic distribution of the world's most esteemed wines. Novice or connoisseur, consumer or seller, this app will meet your oenophile needs. In the Wine Explorer, ...
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What is “Tidy Data”?

May 11, 2019 | John Mount

I would like to write a bit on the meaning and history of the phrase “tidy data.” Hadley Wickham has been promoting the term “tidy data.” For example in an eponymous paper, he wrote: In tidy data: Each variable forms a column. Each observation forms a row. Each type of ... [Read more...]
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