1146 search results for "Maps"

Paris’s history, captured in its streets

February 2, 2015
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Paris’s history, captured in its streets

The following image by Mathieu Rajerison has been doing the rounds of French media recently. It shows the streets of Paris, color-coded by their compass direction. It's been featured in an article in Telerama magazine, and even on French TV Channel LCI (skip ahead to 8:20 in the linked video. which also features an interview with Mathieu). Mathieu used...

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KEGG enrichment analysis with latest online data using clusterProfiler

February 1, 2015
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KEGG.db is not updated since 2012. The data is now pretty old, but many of the Bioconductor packages still using it for KEGG annotation and enrichment analysis. As pointed out in 'Are there too many biological databases', there is a problem that many out of date biological databases often don't get offline. This issue also exists in web-server or software...

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The leaflet package for online mapping in R

January 31, 2015
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The leaflet package for online mapping in R

It has been possible for some years to launch a web map from within R. A number of packages for doing this are available, including: RgoogleMaps, an interface to the Google Maps api leafletR, an early package for creating Leaflet maps with R rCharts, which can be used as a basis for webmaps In this tutorial we use...

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Turning R into a GIS – Mapping the weather in Germany

January 29, 2015
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Turning R into a GIS – Mapping the weather in Germany

Nothing has gotten more attention in the visualization world like the map-based insights, or in other words, just plotting on a map different KPIs to allow for a playful discovery experience. I must admit,...

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Google Analytics Dashboards with R & Shiny

January 27, 2015
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Google Analytics Dashboards with R & Shiny

One of the key activities of any web or digital analyst is to design and create dashboards. The main objective of a web analytics dashboard is to display the current status of your key web metrics and arrange them on a single view, so that information ...

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Building a choropleth map of Italy using mapIT

January 19, 2015
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Building a choropleth map of Italy using mapIT

In the R environment, different packages to draw maps a

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Drug Crime Density in Boston

January 15, 2015
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Drug Crime Density in Boston

The original map can be found in my previous post, Spatial Data Visualization with R. As a review, I use get_map function in the ggmap package to grab a map of Boston from Google Maps. The “crime report” data can be found at https://data.cityofboston.gov/. In the code below, I bring in crime data as a csv file. The data … Continue reading...

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Some Applications of Item Response Theory in R

January 11, 2015
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Some Applications of Item Response Theory in R

The typical introduction to item response theory (IRT) positions the technique as a form of curve fitting. We believe that a latent continuous variable is responsible for the observed dichotomous or polytomous responses to a set of items (e.g., multipl...

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Do You Know What You Show at Your Map?

January 10, 2015
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Do You Know What You Show at Your Map?

As access to the GIS and mapping is becoming easier every year the more people and companies create maps. Unfortunately often they just do not know what they are actually showing at their maps. This issue is being mentioned over and over again.  Here is the example that I discovered recently: Cyberthreat Real-Time Map by Kaspersky...

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Interactive visualizations with R – a minireview

January 9, 2015
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2015-01-10 00_34_37-Clipboard

Interactive visualization allows deeper exploration of data than static plots. Javascript libraries such as d3 have made possible wonderful new ways to show data. Luckily the R community has been active in developing R interfaces to some popular javascript libraries to enable R users to create interactive visualizations without knowing any javascript. In this post I have reviewed...

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