3276 search results for "map"

Pivoting Data in R Excel-style

January 2, 2014
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Pivoting Data in R Excel-style

(This article is referring to an initial proof-of-concept version of r-big-pivot) I have to admit that I very much enjoy pivoting through data using Excel. Its pivoting tool is great for getting a quick insight into a data set’s structure … Continue reading → The post Pivoting Data in R Excel-style appeared first on joy...

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Using system fonts in R graphs

December 31, 2013
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Using system fonts in R graphs

This is a pretty old topic in R graphics. A classical article in R NEWS, Non-standard fonts in PostScript and PDF graphics, describes how to use and embed system fonts in the PDF/PostScript device. More recently, Winston Chang developed the extrafont package, which makes the procedure much easier. A useful introduction article can be found in the readme page of extrafont, and also...

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Fun with R and graphs on the dawn of 2014

December 31, 2013
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Fun with R and graphs on the dawn of 2014

There is some secret message hidden in this graph Let’s decode it Resulting in Wishing everyone a Happy New Year 2014, cheers!

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Using R as a Computer Algebra System with Ryacas

December 31, 2013
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R is used to perform statistical analysis and doesn't focus on symbolic maths. But it is sometimes useful to let the computer derive a function for you (and have the analytic expression of said derivative), but maybe you don't want to leave your comfy R shell. It is possible to turn R into a full-fledged computer...

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Decluttering ordination plots part 4: orditkplot()

December 31, 2013
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Decluttering ordination plots part 4: orditkplot()

Earlier in this series I looked at the ordilabel() and then the orditorp() functions, and most recently the ordipointlabel() function in the vegan package as means to improve labelling in ordination plots. In this, the fourth and final post in the series I take a look at orditkplot(). If you’ve created ordination diagrams before or...

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Data Scientist. The Path I Chose

December 30, 2013
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Data Scientist. The Path I Chose

As we all are marching into the New Year, I would like to post about my plans to become a Data Scientist, my 2014 resolution at Professional front. The term Data Science was first introduced to me a year ago same time. Since then I have started researching and gathering necessary information and decided to become...

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dcemriS4 0.51

December 30, 2013
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dcemriS4 0.51

The R package dcemriS4 provides routines for the quantitative analysis of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI), along with quantification of diffusion-weighted MRI (DWI) and quantitative T2 maps from CPMG sequences.  The ...

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K-means Clustering 86 Single Malt Scotch Whiskies

December 30, 2013
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K-means Clustering 86 Single Malt Scotch Whiskies

by Luba Gloukhov The first time I had an Islay single malt, my mind was blown. In my first foray into the world of whiskies, I took the plunge into the smokiest, peatiest beast of them all — Laphroig. That same night, dreams of owning a smoker were replaced by the desire to roam the landscape of smoky single...

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Hadoop for R’s Data scientist

December 29, 2013
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Hadoop for R’s Data scientist

I don’t exactly know where to start. But, after a real pleasant discussion with one of my ex colleague, it seems that there are many thongs around Hadoop ecosystem and R for analyst that should be said by a data scientist, means that, someone who don’t know much more about big data architecture, but who should know the essentials...

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Lyric Analytics

December 28, 2013
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Lyric Analytics

I was messing around with the text mining (tm) package in R and was thinking of something I could comb through.  I looked through some other blogs and websites to see how they were using it:  mining through presidential speeches debates&...

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