Welcome to the Highcharts JS (highcharts) Options Reference

These pages outline the chart configuration options, and the methods and properties of Highcharts objects.

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plotOptions.scatter.cluster.layoutAlgorithm.kmeansThreshold

When type is set to undefined and there are more visible points than the kmeansThreshold the grid algorithm is used to find clusters, otherwise kmeans. It ensures good performance on large datasets and better clusters arrangement after the zoom.