3790 search results for "GIS"

Include uncertainty in a financial model

April 1, 2014
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Include uncertainty in a financial model

Here’s a post that appears on my new website, ragscripts.com. On-line resources for analysts are often either too general to be of practical use or too specialised to be accessible. The aim of ragscripts.com is to remedy this by providing start to finish directions for complex analytical tasks. The site is under construction at the … Continue reading...

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Calendar charts with googleVis

April 1, 2014
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Calendar charts with googleVis

My little series of posts about the new googleVis charts continues with calendar charts. Google's calendar charts are still in beta, but they provide already a nice heat map visualisation of calendar year data. The current development version of google...

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analyze the european social survey (ess) with r

March 31, 2014
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with more than a decade of microdata aimed at gauging the political mood across european nations, the european social survey (ess) allows scientists like you to examine socio-demographic shifts among broad groups all the way down to pirate party (pirat...

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Process and observation uncertainty explained with R

March 31, 2014
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Process and observation uncertainty explained with R

Once up on a time I had grand ambitions of writing blog posts outlining all of the examples in the Ecological Detective.1 A few years ago I participated in a graduate seminar series where we went through many of the examples in this book. I am not a population biologist by trade but many of

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Bayesian Data Analysis [BDA3 – part #2]

March 30, 2014
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Bayesian Data Analysis [BDA3 – part #2]

Here is the second part of my review of Gelman et al.’ Bayesian Data Analysis (third edition): “When an iterative simulation algorithm is “tuned” (…) the iterations will not in general converge to the target distribution.” (p.297) Part III covers advanced computation, obviously including MCMC but also model approximations like variational Bayes and expectation propagation

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Looking at Measles Data in Project Tycho

March 30, 2014
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Looking at Measles Data in Project Tycho

Project Tycho includes data from all weekly notifiable disease reports for the United States dating back to 1888. These data are freely available to anybody interested. I wanted to play around with the data a bit, so I registered.MeaslesMeasles a...

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Introduction to PortfolioAnalytics

March 29, 2014
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Introduction to PortfolioAnalytics

PortfolioAnalytics Basics This is a guest post by Ross Bennett. Ross is currently enrolled in the University of Washington Master of Science in Computational Finance & Risk Management program with an expected graduation date of December 2014. He worked on the PortfolioAnalytics...

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R Training for SAS users in Singapore and online

March 28, 2014
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Revolution Analytics has just introduced a 10-module series of R courses in Singapore. If you'd like to learn how to do data analysis in R, already know data analysis in another language like SAS and want to transition to R, or just want to enhance your R skills in a specific area, one of these hands-on courses may be...

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Upcoming Rcpp talks and workshops

March 27, 2014
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A number of talks about Rcpp are scheduled over the next couple of months: Our sixth internation conference R/Finance, will take place May 16 and 17, 2014, at UIC in Chicago. See the current draft agenda for details of the program---whic...

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Why use R? Five reasons.

March 27, 2014
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Why use R? Five reasons.

In this post I will go through 5 reasons: zero cost, crazy popularity, awesome power, dazzling flexibility, and mind-blowing support. I believe R is the best statistical programming language to learn. As a blogger who has contributed over 150 posts in Stata and over 100 in R I have extensive experience with both a proprietary statistical programming language...

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