How to make a 2D histogram with D3 library (tutorial)

Before you get started with this article, I suggest you to read the article about Hexagonal Binning. In that article this method of data aggregation is shown and explained in detail. Two scatterplots, generated from two different datasets are compared, and so a class of specific datasets are highlighted. In fact, analyzing “sparse” datasets can be difficult, especially when we are looking for trends or clusters.

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