Using Heatmaps and Contours in Spotfire Maps for Spatial Generalization

Spatial Generalization is a method of summarizing individual point data into regions, often to reduce the data needed for insight while still retaining the insight's value. In this video, Neil Kanungo uses Heatmaps and Contours from the TIBCO Community Exchange, and applies them to pricing information on Airbnb listings in Boston, MA.

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This video was recorded using Spotfire 10.2.

#DrSpotfire #DSQT #Spotfire

[Afroquest]

Thanks for the wonderful tutorial. How could you make this generate a heat map for all points within a polygon (rather than all marked points)?

[yisetvargas]

no lo logro, parece importar los datos pero no me deja seleccionar el área, no puedo hacer el efecto del heatmap

[stevenday]

Great video. Can you think of any compatibility issues this may have with older versions of Spotfire? I'm noticing crashing when trying to add contours or heat map as feature layers. Thanks!

[brencroll]

Very helpful video. I think a great quick tip to do would be "how to limit an information link by a calculated value." Advanced methods are not well covered in Spotfire documentation or videos online. For example, suppose we want to limit a our data to "4WD vehicles" using data on demand, but our information link only has a column with all different car models and we do not have permissions to use the Information Designer (very common at large companies). How do we optimise load times of our report/use document properties to only bring in this data of interest? Appreciate this may be improved or solved already in Spotfire 10 + with the ability to filter as a transformation...
Keep up the great work!

[passingmtl]

Hi. I can't seem to get the heat map and contour tables to populate as expected. This is the notification: Error in colVars(x, ...) : incorrect number of dimensions. Any thoughts on how to resolve it?

[mrmvpick]

Any advice on how to change the border boundaries? For example, I want to make a map like the one you showed except i don't want it to cut off the interpolating right at the edge of my data. This way I can try and have an extrapolated guess at what some of the nearby areas might show. If I put in ghost data like price of zero and some coordinates, it will screw it up, so I don't know how to make this work. Any ideas?

[venkatagopi.m]

Hi Neil, Thanks for the post. Just want to know. i dont have Latitude and longitude values i have only ISO codes at a country level if i want to see this. is it possible or in a scatter plot or 3D graphic this kind of representation is possible?

[petro_eng]

So when I select my AOI on the map my tables do not get calculated as yours do. Any advice?