2647 search results for "Map"

Mapping the past and the future with Leaflet

July 29, 2015
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Mapping the past and the future with Leaflet

I have been working on mapping things for a while and I must say that I really like the Leaflet package from Rstudio. It makes it very easy and straight forward to make leaflet maps. A while back I stumbled upon an interactive graphic from The Times, that used census data to compare each US... Read more »

Making Static/Interactive Voronoi Map Layers In ggplot/leaflet

July 26, 2015
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Making Static/Interactive Voronoi Map Layers In ggplot/leaflet

Despite having shown various ways to overcome D3 cartographic envy, there are always more examples that can cause the green monster to rear it’s ugly head. Take the Voronoi Arc Map example. For those in need of a primer, a Voronoi tesslation/diagram is: …a partitioning of a plane into regions based on distance to points

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A Path Towards Easier Map Projection Machinations with ggplot2

July 24, 2015
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A Path Towards Easier Map Projection Machinations with ggplot2

The $DAYJOB doesn’t afford much opportunity to work with cartographic datasets, but I really like maps and tinker with shapefiles and geo-data when I can, plus answer a ton of geo-questions on StackOverflow. R makes it easy—one might even say too easy—to work with maps. All it takes to make a map of the continental

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mapView: basic interactive viewing of spatial data in R

July 24, 2015
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mapView: basic interactive viewing of spatial data in R

Working with spatial data in R I find myself quite often in the need to quickly visually check whether a certain analysis has produced reasonable results. There are two ways I usually do this. Either I: (sp)plot the data in … Continue reading →

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Administrative Maps and Projections in R

July 23, 2015
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Administrative Maps and Projections in R

Today I will demonstrate how to create maps of “other countries”, and use map projections, with the choroplethr package in R. I write “other countries” in quotes because, like most things, translating a high level wish into software can be complicated. If you want to skip ahead and play with a web app that lets you explore The post

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Using the new ‘viridis’ colormap in R (thanks to Simon Garnier)

July 20, 2015
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Using the new ‘viridis’ colormap in R (thanks to Simon Garnier)

Nathaniel Smith and Stéfan van der Walt presented a new colormap (for Python) at SciPy 2015 called viridis. From the authors: The default colourmap in Matplotlib is the colourful rainbow-map called Jet, which is deficient in many ways: small changes in the data sometimes produce large perceptual differences and vice-versa; its lightness gradient is

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MazamaSpatialUtils — Ebola Map Example

July 14, 2015
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MazamaSpatialUtils — Ebola Map Example

This entry is part 16 of 16 in the series Using R The MazamaSpatialUtils package on CRAN has just been updated with additional shape file conversion scripts and location buffering so that points located just outside of polygons (i.e. coastal …   read more ...

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Creating a TRULY Interactive Map of Craft Breweries in VA Using the leafletR Package (Guest Blog Post by Dr. Keegan Hines)

July 7, 2015
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Creating a TRULY Interactive Map of Craft Breweries in VA Using the leafletR Package (Guest Blog Post by Dr. Keegan Hines)

It’s a good feeling when a great friend who is smarter than you offers to write a blog post, for your blog, that’s better than anything you’ve written so far. Friends, colleagues, people who’ve not yet realized they are at the wrong site: please allow me to introduce to you the awe-inspiring Dr. Keegan Hines. The post

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3D Graphing & Maps For Excel, R, Python, & MATLAB: Gender & Jobs, a 3D Gaussian, Alcohol, & Random Walks

July 1, 2015
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3D Graphing & Maps For Excel, R, Python, & MATLAB: Gender & Jobs, a 3D Gaussian, Alcohol, & Random Walks

Showing a third dimension on a flat computer screen is usually hard. Plotly’s interactive 3D graphing changes that. You can zoom, toggle, pan, rotate, spin, see data on the hover, and more. In this post we’ll make 3D graphs with our APIs fo...

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Contours and Networks with epimap and rleafmap

June 30, 2015
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Contours and Networks with epimap and rleafmap

In February, I participated in a hackaton organized by Thibaut Jombart at Imperial College, London, to work on visualization tools for outbreak data. This was a great time spent with great people! Thanks again, Thibaut, for organizing. I took part … Lire la suite →

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