3107 search results for "Map"

In case you missed it: April 2014 roundup

May 9, 2014
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In case you missed them, here are some articles from April of particular interest to R users: Registration is now open for the useR! 2014 R conference in Los Angeles. A new Kaggle competition challenges R users to predict which shoppers will become repeat buyers. Data on R usage around the world, presented as an interative map. The New...

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package bdvis is on CRAN

May 8, 2014
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package bdvis is on CRAN

We are happy to announce that package bdvis is on CRAN now. http://cran.r-project.org/web/packages/bdvis/index.html bdvis: Biodiversity Data Visualizations Biodiversity data visualizations using R would be helpful to understand completeness of biodiversity inventory, extent of geographical, taxonomic and temporal coverage, gaps and biases in data. As part of Google Summer of Code 2014, we hope to make progress

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Euclid Algorithm for Set of Integers: ‘Reduce’ vs. trees in R

May 7, 2014
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The Euclid Algorithm provides a solution to the greatest common divisor (GCD) of two natural numbers $x_{1}$ and $x_{-2}$, denoted by $GCD(x_{1}, x_{2})$. This will produce the largest integer that divides $x_{1}$ and $x_{2}$. Solution is proposed by ...

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Dining in San Francisco – Let R Guide You

May 6, 2014
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Dining in San Francisco – Let R Guide You

I’m frequently asked by newcomers to R to provide an easy to follow generic set of instructions on how to download data, transform it, aggregate it, make graphs, and write it all up for publication in a high impact journal – all by the end of the day ! While such a request is somewhat

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analyze the censo demografico no brasil (censo) with r and monetdb

May 6, 2014
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almost a century older than its own capital city, the decennial censo demografico no brasil (censo) forms the basis of every major survey product in the country.  the pesquisa nacional por amostra de domicilios (pnad), the pesquisa de orcamentos f...

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7 R Quirks That Will Drive You Nutty

May 5, 2014
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7 R Quirks That Will Drive You Nutty

7 R Quirks That Will Drive You Nutty StumpedEvery language has its idiosyncrasies. Some “designer”“ type languages have less due to extreme thoughtfulness of language engineers. I suspect Julia for example has many less quirks. However, despite...

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R GIS: Generalizer for KML Paths

May 3, 2014
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I'm posting a recent project's spin-off, which is a custom line-generalizer which I used for huge KML-paths. Anyone with a less clumpsy approach?## line generalizing function: takes two vectors of with x/ycoords ## and return ids of x/y elements which distance to its next element## is shorter than the average distance between consecutive vertices## multiplied by 'fac'check_dist ...

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Multidimensional Scaling (MDS) with R

May 2, 2014
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Multidimensional Scaling (MDS) with R

This page shows Multidimensional Scaling (MDS) with R. It demonstrates with an example of automatic layout of Australian cities based on distances between them. The layout obtained with MDS is very close to their locations on a map. At first, … Continue reading →

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SMART Hackathon: Day 1

May 1, 2014
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SMART Hackathon: Day 1

So day 1 of the #JHUSMARTHack 2014 is over and day 2 is underway. It's been awesome. One student estimated he did “one week's worth of work”. Some interesting (I think) things I thought about: Flooding rain is good weather for coding. (As long as no sinkholes arise) The Admiral Fell Inn is a pretty

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Converting shapefiles to rasters in R

May 1, 2014
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Converting shapefiles to rasters in R

I’ve been doing a lot of analyses recently that need rasters representing features in the landscape. In most cases, these data have been supplied as shapefiles, so I needed to quickly extract parts of a shapefile dataset and convert them … Continue reading →

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