Analyze brushed records

GenomeSpy loads ten generic measurements. Shift-drag across the plot to choose input records, then calculate each group's count and mean.

Analysis results received by the app

view.data.transform({scope, transform, inputLimit, limit}) captures brushed records first, then runs an aggregate transformation in a separate dataflow. The plot keeps its original measurements. The app receives summaries without repeating the calculation.

Results update when you click Analyze brush. A cleared brush returns no summaries. Unlike record readback, the calculation here runs after choosing the input region. Synthetic generic data shared with that example.