Extract subset of data from scatter plot

Community Support
1

I have a scatter plot of 1000+ data points.
I'm looking for options to extract a small subset
of data points that cluster together on the plot. While the hover tool lets us look at individual data points, is there a way to select an area on the plot and extract all data points within it?

Thank you!!
Priya

2

Hi,

There's nothing build into Bokeh to do this, but you could potentially create a tool yourself in a couple of different ways:

* with callbacks on the new UI events:

  bokeh.events — Bokeh 3.3.2 Documentation
  https://github.com/bokeh/bokeh/blob/master/examples/howto/js_events.py
  https://github.com/bokeh/bokeh/blob/master/examples/howto/events_app.py

* by creating a custom extension:

  http://bokeh.pydata.org/en/latest/docs/user_guide/extensions.html

Thanks,

Bryan

···

On Jul 25, 2017, at 02:54, [email protected] wrote:

I have a scatter plot of 1000+ data points.
I'm looking for options to extract a small subset
of data points that cluster together on the plot. While the hover tool lets us look at individual data points, is there a way to select an area on the plot and extract all data points within it?

Thank you!!
Priya

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