2929 search results for "GIS"

How Did I Miss “The Golden Dilemma”?

March 15, 2013
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How Did I Miss “The Golden Dilemma”?

I am ashamed to admit that I am way behind (about 10,127 downloads) in discovering this wonderful paper: The Golden Dilemma (January 8, 2013)Erb, Claude B. and Harvey, Campbell R.Available at SSRN: http://ssrn.com/abstract=2078535 Here are the authors presenting the concept in July 2012 if you prefer slideshow format (thanks...

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Data Science Education gets personal

March 14, 2013
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by Joseph B. Rickert It is difficult to imagine that there is anyone on the planet with an internet connection and a desire to learn something new who has not at least looked into taking a massive open online course (MOOC). Last Fall, in an 11/4/12 article, the New York Time declared the Year of the MOOC and quoted...

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Upcoming events

March 14, 2013
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Upcoming events

Highlighted LondonR is soon — see the “Previously Announced” section. New Events Thirsty Quants 2013 March 21, London. Some thirsty quants will be going for a drink on the 21st of March as of 18.30 at the Lamb Tavern in Leadenhall Market. http://www.lambtavernleadenhall.com/ Rethinking the Economics of Pensions 2013 March 21 & 22 in London. … Continue reading...

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On ENAR, or Statistical Meetings in General

March 14, 2013
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Last year I accepted an invitation from Ben to go to ENAR 2013 -- my first ENAR. I used to go to JSM and useR!, and apparently I enjoy useR! most. The reason is not, or not only, because I'm more of a technical person. It is just hard to concentrate at large statistical conferences. I want...

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John Snow’s Cholera data in more formats

March 13, 2013
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John Snow’s Cholera data in more formats

In honour of the bicentenary of John Snow’s birth – and because I was asked to by someone via email – I have now released my digitisation of John Snow’s Cholera data in a few other formats: KML and as Google Fusion Tables. To save you reading my previous blog posts on the subject, I’ll

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New package for ensembling R models

March 13, 2013
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New package for ensembling R models

I've written a new R package called caretEnsemble for creating ensembles of caret models in R.  It currently works well for regression models, and I've written some preliminary support for binary classification models. At th...

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R to Latex packages: Coverage

March 12, 2013
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There are now quite a few R packages to turn cross-tables and fitted models into nicely formatted latex. In a previous post I showed how to use one of them to display regression tables on the fly. In this post I summarise what types of R object each of the major packages can deal with.

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High Resolution Figures in R

March 12, 2013
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High Resolution Figures in R

As I was recently preparing a manuscript for PLOS ONE, I realized the default resolution of R and RStudio images are insufficient for publication. PLOS ONE requires 300 ppi images in TIFF or EPS (encapsulated postscript) format. In R plots … Continue reading →

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R 101

March 11, 2013
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as.character() is your friendas.character() is your friend Sometimes when you open a data file (lets say a .csv), variables will be recognized as factor whereas it should be numeric. It is therefore tempting to simply convert the variable to numeric using as.numeric(). Big mistake! If...

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Simulating Allele Counts in a population using R

March 11, 2013
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Simulating Allele Counts in a population using R

This post is inspired by the Week 7 lectures of the Coursera course "Introduction to Genetics and Evolution" (I highly recommend this course for anyone interested in genetics, BTW.) Professor Noor uses a Univ Washington software called AlleleA1 for try...

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