800 search results for "maps"

FEMA’s Flood Insurance Program – Analysis & Maps using R

October 20, 2013
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The National Flood Insurance Program (NFIP) by the Federal Emergency Management Agency (FEMA) in the United States enables property owners in participating communities to purchase insurance protection from the government against losses from flooding (h...

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Big and small daycares in Toronto by building type, mapped using RGoogleMaps and Toronto Open Data

October 17, 2013
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Big and small daycares in Toronto by building type, mapped using RGoogleMaps and Toronto Open Data

Before my daughter was born, I thought that my wife and I would have to send her to a licensed child care centre somewhere in Toronto.  I had heard over and over how long of a waiting list I should … Continue reading →

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Batch Geocoding with R and Google maps

October 12, 2013
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Batch Geocoding with R and Google maps

I’ve recently wanted to geocode a large number of addresses (think circa 60k) in Ireland as part of a visualisation of the Irish property market. Geocoding can be simply achieved in R using the geocode() function from the ggmap library. The geocode function uses Googles Geocoding API to turn addresses from text to latitude and

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Using Google maps API and R

September 3, 2013
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Using Google maps API and R

This post shows how to use Google Maps‘ API with R. Combine the first part with Plyr and it becomes a very powerful tool in just a few lines of code. You can find a gist in RMarkdown with the code here or click below to continue reading. The post Using Google maps API and R appeared first on

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Using Heatmaps to Uncover the Individual-Level Structure of Brand Perceptions

August 16, 2013
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Using Heatmaps to Uncover the Individual-Level Structure of Brand Perceptions

Heatmaps, when the rows and columns are appropriately ordered, provide insight into the data structure at the individual level.  In an earlier post I showed a cluster heatmap with dendrograms for both the rows and the columns.  In addition, I...

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Heatmapping Washington, DC Rental Price Changes using OpenStreetMaps

August 4, 2013
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Heatmapping Washington, DC Rental Price Changes using OpenStreetMaps

Percentage change of median price per square foot from July 2012 to July 2013: Percentage change of median price from July 2012 to July 2013: Last November I made a  choropleth of median rental prices in the San Francisco Bay Area using data from my company, Kwelia.  I have wanted to figure out how to

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Interfacing R and Google maps

July 30, 2013
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Interfacing R and Google maps

Introduction I couple of weeks ago I had an idea for a website where people can collaborate to create the first real Audio Atlas, using the power of the Google Maps API. The problem was that I do some programming in R but I did know very few things about HTML and javascript. However, I knew that having...

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UK dialect maps

July 10, 2013
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UK dialect maps

A few weeks ago Joshua Katz published some awesome dialect maps of the United States with the help of a web interface coded with Shiny. Now we propose a similar setup for the UK data based on our rapporter.net "R-as-a-Service" with some further add-ons, like regional comparison and dynamic textual analysis of the differences: You may...

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Interactive Heatmaps (and Dendrograms) – A Shiny App

July 7, 2013
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Interactive Heatmaps (and Dendrograms) – A Shiny App

Heatmaps are a great way to visualize data matrices. Heatmap color and organization can be used to  encode information about the data and metadata to help learn about the data at hand. An example of this could be looking at the raw data  or hierarchically clustering samples and variables based on their similarity or differences.

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R2leaflet (v0.1) – make interactive online maps from R

June 11, 2013
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R2leaflet (v0.1) – make interactive online maps from R

I have been working on a simple R function to take latitude and longitude of points of interest, and text for pop-up labels, and produce an interactive online map. Interactive graphics are incredibly useful in getting people interested in your … Continue reading →

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