2249 search results for "map"

Disruptive Data Science – Transforming Your Company into a Data Science-Driven Enterprise

January 29, 2013
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Disruptive Data Science – Transforming Your Company into a Data Science-Driven Enterprise

Big Data is the latest technology wave impacting C-Level executives across all areas of business, but amid the hype, there remains confusion about what it all means. The name emphasizes the exponential growth of data volumes worldwide (collectively, 5 Exabytes/ day in the latest estimate I saw from IDC), but more nuanced definitions of Big Data incorporate the following...

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Applying Tradeblotter’s Nice Work Across Manager Rather than Time

January 28, 2013
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Applying Tradeblotter’s Nice Work Across Manager Rather than Time

Ever since I saw the very helpful distribution page first presented in Download and parse EDHEC hedge fund indexes, I have used it liberally.  Now that it is has been functionalized (Visually Comparing Return Distributions), I thought I would amen...

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My template for controlling publication quality figures

January 28, 2013
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My template for controlling publication quality figures

The following is a template that I usually start with when producing figures for publication. It allows me to control:The overall size of the figure (in inches) (WIDTH, HEIGHT)The layout of figure subplots (using the layout() function) (LO)The resoluti...

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R and foreign characters

January 25, 2013
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R and foreign characters

Working with Russian characters can be mind-numbingly frustrating. This is true for R, as for other applications, so below I've written out the my top five tricks for making Russian inputs work in R; i believe they should be transferable to most other languages....

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Regressions 101: “Significance”

January 25, 2013
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Regressions 101: “Significance”

SETUP (CAN BE SKIPPED) We start with data (how was it collected?) and the hope that Read more »

Effects of forest management on a woodland salamander in Missouri

January 25, 2013
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Effects of forest management on a woodland salamander in Missouri

Effects of experimental forest management on a terrestrial, woodland salamander in Missouri by Daniel J. Hocking, Grant M. Connette, Christopher A. Conner, Brett R. Scheffers, Shannon E. Pittman, William E. Peterman, and Raymond D. Semlitsch. This is the first post … Continue reading →

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7 Functions to do Metric Multidimensional Scaling in R

January 23, 2013
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7 Functions to do Metric Multidimensional Scaling in R

In this post we will talk about 7 different ways to perform a metric multidimensional scaling in R. Multidimensional Scaling Multidimensional Scaling (MDS), is a set of multivariate data analysis methods that are used to analyze similarities or dissimilarities in data. One of the nice features of MDS is that it allows us to represent … Continue reading...

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Create HTML page containing all package examples using knitr and markdown

January 23, 2013
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Create HTML page containing all package examples using knitr and markdown body, td { font-family: sans-serif; background-color: white; font-size: 12px; margin: 8px; } tt, code, pre { font-family: 'DejaVu Sans Mono', 'Droid San...

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Text Decryption Using MCMC

January 22, 2013
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Text Decryption Using MCMC

The famous probabilist and statistician Persi Diaconis wrote an article not too long ago about the "Markov chain Monte Carlo (MCMC) Revolution." The paper describes how we are able to solve a diverse set of problems with MCMC. The first example he give...

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from down-under, Lake Menteith upside-down

January 22, 2013
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from down-under, Lake Menteith upside-down

The dataset used in Bayesian Core for the chapter on image processing is a Landsat picture of Lake of Menteith in Scotland (close to Loch Lomond). (Yes, Lake of Menteith, not Loch Menteith!) Here is the image produced in the book. I just got an email from Matt Moores at QUT that the image is

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