Variance Heatmap

Traditionally heatmaps visualize average values. For example, in the elevation heatmaps demonstrated on the Geographic Heatmaps page, the colors at each location indicate the average of elevation observations close to that particular location. Although the visualizations look great, they are kind of boring because we already know the defails of Earth from world maps. Tell me something new!

Sometimes the most interesting phenomena cannot be discovered by staring at averages. It might be much more fascinating to take a look at the variance of observations. Especially when analyzing business numbers, averages are a dangerously narrow view which hides volatility and tricks to wrong conclusions. Flat average does not necessarily indicate that "everything is OK" or "nothing interesting here". Checking the variance might reveal something remarkable and give much deeper understanding of the analyzed topic.

HeatMiner® can generate variance heatmaps visualizing the areas where observations vary a lot. In case of the elevation example, variance heatmap answers the question: "In which areas is elevation changing most rapidly?". The resulting image below gives you a whole new point of view to your home planet.

Variance heatmap generated with HeatMiner®, the visual data mining technology by Agience Oy Ltd

As all geographic heatmaps by HeatMiner®, also variance heatmaps can viewed in 3D. The snapshot image below is taken near Indonesia where elevation variance seems to be the highest.

Try HeatMiner!

Some of these great HeatMiner® heatmap visualizations are now available as-a-Service at the Cloud'N'Sci.fi algorithm marketplace. Go to the HeatMiner homepage and create heatmaps from your own data using free evaluation campaigns! New heatmap types and demos are introduced frequently at the new HeatMiner wiki pages so keep an eye on it for updates.

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