Mapping London’s Population Change 1801-2030
Buried in the London Datastore are the population estimates for each of the London Boroughs between 2001 – 2030. They predict a declining population for most...
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Boris Bikes/Barclays Cycle Hire Average Journey Times
The visualisation above shows the average relative duration of Boris Bikers’ weekday journeys over a 4 month period at hourly intervals. For each time step the...
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Exporting KML from R
Google Earth has become a popular way of disseminating spatial data. KML is the data format required to do this. It is possible to load almost any type of spatial data...
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Clipping a Surface By a Polygon
Background: A common function in standard GIS software enables users to create a raster surface and extract values or clip it based on a set of polygons. This may be...
Read MoreWriting a Spatial Function: The Location Quotient
Background: In some cases it is necessary to conduct the same analysis multiple times on either the same or different data. In such circumstances it is worth writing a...
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spatial.ly is written and curated by James Cheshire. James is a lecturer at the UCL Centre for Advanced Spatial Analysis where he researches, teaches and maps.