Two new functions makes geo-analysis easier

September 4th, 2019, Published in Articles: PositionIT

For people trying to understand their location data and to see spatial patterns, Tableau Software is adding two spatial functions that will make analysing location data easier than before. The spatial functions are called MakePoint and MakeLine. MakePoint is a function that will allow the use of latitude and longitude fields in a spatial join. Spatial joins allow you to use points and polygons to join datasets based on their spatial relationship and make points. In this way the function turns non-spatial data sources like text files and Excel tables into spatial data sources that allow you to spatially aggregate spatial data. The MakeLine function is useful when you want to visualise the connection between two points on a map. If you have ever built an Origin-Destination map or worked with pick-up and drop-off datasets, MakeLine makes connecting the dots simple because you do not have to replicate rows of data or perform any pre-processing, so long as you have the latitude and longitude for the start and end of your data. These two functions, or spatial calculations, make geospatial analysis simple, and remove the need for pre-processing and shaping of data.

Contact Angela Woodward, Tableau Software,

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