Monthly Archives: August 2015

About to teach Statistical Graphics and Visualization course at CMU

August 31, 2015
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About to teach Statistical Graphics and Visualization course at CMU

I’m pretty excited for tomorrow: I’ll begin teaching the Fall 2015 offering of 36-721, Statistical Graphics and Visualization. This is a half-semester course designed primarily for students in our MSP program (Masters in Statistical Practice). A large part of the … Continue reading →

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likelihood-free inference in high-dimensional models

August 31, 2015
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likelihood-free inference in high-dimensional models

“…for a general linear model (GLM), a single linear function is a sufficient statistic for each associated parameter…” The recently arXived paper “Likelihood-free inference in high-dimensional models“, by Kousathanas et al. (July 2015), proposes an ABC resolution of the dimensionality curse by turning

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Revolution R Enterprise Now Available in the Cloud on Azure Marketplace

August 31, 2015
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by Richard Kittler, Revolution R Enterprise PM, Microsoft Advanced Analytics Revolution is excited to announce the availability of its latest release of Revolution R Enterprise 7.4.1 (RRE) as a technical preview on Microsoft Azure via Windows- and Linux-based virtual machines in the Azure Marketplace. Through Azure’s world-wide cloud infrastructure customers now have on-demand access to high-performance predictive analytics to...

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Two little annoying stats detail

August 31, 2015
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Two little annoying stats detail

A very brief post at the end of the field season on two little “details” that are annoying me in paper/analysis that I see being done (sometimes) around me. The first one concern mixed effect models where the models built in the contain a grouping factor (say month or season) that is fitted as both

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16 new R jobs (from R-users.com ; 2015-08-31)

August 31, 2015
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16 new R jobs (from R-users.com ; 2015-08-31)

This is the bimonthly post (for 2015-08-31) for new R Jobs from R-users.com. Employers: you may visit this link to post a new R job to the R community (it’s free and quick). Job seekers: please follow the links below to learn more and apply for your job of interest (or go to R-users.com to see all the R jobs that are currently available) Full-Time Quantitative Analyst in Rain & Hail...

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embeding a subplot in ggplot via subview

August 30, 2015
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embeding a subplot in ggplot via subview

I implemented a function, subview, in ggtree that make it easy to embed a subplot in ggplot. An example is shown below: Read More: 131 Words Totally

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Advanced Tips and Tricks with data.table

August 30, 2015
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Advanced Tips and Tricks with data.table

Tips and tricks learned along the way 1. DATA STRUCTURES & ASSIGNMENT => Columns of lists => Suppressing intermediate output with {} => Fast looping with set => Using shift for to lead/lag vectors and lists => Create multiple columns with := in one statement ...

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Visualizing Twitter history with streamgraphs in R

August 30, 2015
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I was exploring ways to visualize my Twitter history, and ended up creating this interactive streamgraph of my 20 most used hashtags in Twitter: The graph shows how my Twitter activity has varied a lot. The top three hashtags are #datascience, #rstats and #opendata (no surprises there). There are also event-related hashtags that show up only once, such as...

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GEOSTAT 2015: a write-up

August 30, 2015
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GEOSTAT 2015: a write-up

The week before last I attended the GEOSTAT summer school in Lancaster. GEOSTAT is an annual week-long meeting devoted to ‘geostatistics’ (or ‘spatial statistics’ - we’ll come on to the difference subsequently). Having seen the impressive range of materials from previous ‘GEOSTATs’, I was greatly looking forward to the event as a hub of learning, research and community-building, organised...

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subview

August 30, 2015
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subview

I implemented a function, subview, in ggtree that make it easy to embed a subplot in ggplot. An example is shown below: library(ggplot2) library(ggtree) dd <- data.frame(x=LETTERS, y=1:3) pie <- ggplot(dd, aes(x=1, y, fill=x)) + geom_bar(stat="identity", width=1) + ...

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