2247 search results for "MAP"

Random portfolios versus Monte Carlo

July 2, 2012
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Random portfolios versus Monte Carlo

What is the difference between Monte Carlo — as it is usually defined in finance — and random portfolios? The meaning of “Monte Carlo” The idea of “Monte Carlo” is very simple.  It is a fancy word for “simulation”. As usual, it is all too possible to find incredibly muddied explanations of such a simple … Continue reading...

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SYTYCD — where are these terrific dancers come from?

June 29, 2012
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It’s Saturday midnight and I’m already sleepy. However, after several hours, I finally got this google geographic map embedded in my post. Aha!!! This is about 20 finalists from the 9th season of So You Think You Can Dance. I count the states … Continue reading →

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multiplicitiesoffreedom demonstrates Chaos Theory in Excel. If…

June 29, 2012
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multiplicitiesoffreedom demonstrates Chaos Theory in Excel. If…

multiplicitiesoffreedom demonstrates Chaos Theory in Excel. If he filled in more initial values, you would see a thick bar—like a picture of white-noise. Butterflies flapping their wings in Vermont to change the wind in Hangzhou? A drop of water on ...

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Solving mastermind with R

June 29, 2012
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In my last post I have shown a solution to classical sorting problem in R. So I thought that this time it would be nice to generate a strategy for playing Mastermind using R.It was shown by D.E. Knuth that Mastermind code can be bro...

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Use IUCN API with R & XPath

June 28, 2012
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Use IUCN API with R & XPath

Thanks to a posting on R-sig-eco mailing list I learned of the IUCN-API. Here's a simple example for what can be done with it (output as pdf is HERE):require(XML)require(maptools)require(jpeg)input = "panthera-uncia"h <- htmlParse(paste("http://api....

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Reminder: Next Kölner R User Meeting 6 July 2012

June 27, 2012
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Reminder: Next Kölner R User Meeting 6 July 2012

This post is a quick reminder that the next Cologne R user group meeting is only one week away. We will meet on 6 July 2012. The meeting will kick off at 18:00 with three short talks at the Institute of Sociology and will continue, even more informal, ...

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Wordcloud of the Arizona et al. v. United States opinion

June 25, 2012
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Wordcloud of the Arizona et al. v. United States opinion

Here’s one purely for fun – a wordcloud built from the Supreme Court’s opinion on Arizona et al. v United States.  Word clouds, though certainly not the most scientific of visualization techniques, are often engaging and “fun” ways to lead…Read more ›

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Avoid Overplotting of Text in Ordination Diagram

June 25, 2012
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Avoid Overplotting of Text in Ordination Diagram

Referring to a recent posting on r-sig-eco mailing list I'll add this example to theBioBucket:library(vegan)library(vegan)data(dune)sol <- metaMDS(dune) # use ordipointlabel -# here is an example where I added cex according to species frequencies:pl...

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Split-plot 1: How does a linear mixed model look like?

June 24, 2012
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Split-plot 1: How does a linear mixed model look like?

I like statistics and I struggle with statistics. Often times I get frustrated when I don’t understand and I really struggled to make sense of Krushke’s Bayesian analysis of a split-plot, particularly because ‘it didn’t look like’ a split-plot to … Continue reading →

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useR 2012: main conference braindump

June 24, 2012
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useR 2012: main conference braindump

I knew R was versatile, but DANG, people do a lot with it: > > … I don’t think anyone actually believes that R is designed to make *everyone* happy. For me, R does about 99% of the things I … Continue reading →

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