3364 search results for "map"

Extract Coordinates and Other Data from KML in R

June 11, 2014
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KML files are used to visualize geographical data in Google Earth. These files are written in XML and allow to visualize places and to attach additional data in HTML format.In these days I am working with the MIDAS database of wind measuring stations a...

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Making Back-to-Back Histograms

June 10, 2014
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Making Back-to-Back Histograms

A colleage of mine asked me how to do back to back histograms (instead of on top of each other). I feel as though there should be a function like voilin plot from the vioplot package. Voilin plots are good for displaying data, but the violin must have the left and right (or top and

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rOpenSci awarded $300k from the Sloan Foundation

June 10, 2014
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We're delighted to announce that we have received additional funding from the Sloan Foundation to continue and expand our efforts from the past year. We're grateful for the overwhelming support from the community, especially through engagement at various events we organized and attended this past year. Over the next year we plan to: advance not only the...

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The joy of joining data.tables

June 9, 2014
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The joy of joining data.tables

The example I present here is a little silly, yet it illustrates how to join tables with data.table in R. Mapping old data to new dataCategories in general are never fixed, they always change at some point. And then the trouble starts with the data. For example not that long ago we didn't distinguish between smartphones and dumbphones,...

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Decimal comma or decimal point? A googleVis visualization

June 9, 2014
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As you all know, the decimal mark is a symbol used to separate the integer part from the fractional part of a number written in decimal form. Since I am born and raised in Continental Europe I am quite found of using the comma sign to indicate a decimal point. I’ve been growing up with it

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The luckiest team in the NBA

June 8, 2014
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The luckiest team in the NBA

While the NBA finals are in full swing and the two best teams are battling it out for the ultimate prize, another 28 are now in summer vacation. In order to achieve their goal of still playing this time next year, teams often look to improve their roster through trades, player development, and most importantly, the

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The Three Little Pigs

June 8, 2014
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The Three Little Pigs

Jesse, you asked me if I was in the meth business or the money business. Neither. I’m in the empire business (Walter White in Breaking Bad) The game of pig has simple rules but complex strategies. It was described for the first time in 1945  by a magician called John Scarne. Playing the pig game

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Can You Track Me Now? (Visualizing Xfinity Wi-Fi Hotspot Coverage) [Part 1]

June 6, 2014
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Can You Track Me Now? (Visualizing Xfinity Wi-Fi Hotspot Coverage) [Part 1]

This is the first of a two-part series. Part 1 sets up the story and goes into how to discover, digest & reformat the necessary data. Part 2 will show how to perform some basic visualizations and then how to build beautiful & informative density maps from the data and offer some suggestions as to how to prevent potential tracking. Xfinity...

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Stuff I’ve gotten horribly wrong

June 5, 2014
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Stuff I’ve gotten horribly wrong

I'm the first (I hope) to admit when I've gotten something wrong. I like to think I'm humble enough to realize that there are limits to my knowledge. Actually, humility doesn't enter into it. Every day I'm confronted with things that I don't know or understand. Those same limits can often blind me to being

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The Unavoidable Instability of Brand Image

June 4, 2014
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The Unavoidable Instability of Brand Image

"It may be that most consumers forget the attribute-based reasons why they chose or rejected the many brands they have considered and instead retain just a summary attitude sufficient to guide choice the next time."This is how Dolnicar and Rossiter con...

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