Hi,
I wonder if it is possible to do something with the data selected with the lasso tool.
For instance, I want to select a group of data points and I want to compute the mean value of those selected points.
Thanks for your help,
jg
Archived discussions · Captured October 28, 2026
Doing something with data selected using the lasso tool
There are two possibilities. You can use a Bokeh server, similar to this example:
https://github.com/bokeh/bokeh/blob/master/examples/plotting/server/selection_histogram.py
Another (upcoming) option is the "JS callback" to be able to provide rich interactions without a server. This feature is in master, and is in the latest "dev build" (but not the last stable release). Right now you can only specify callbacks on widgets, but it is intended to add callback capability for selection events too.
Thanks,
Bryan
···
On Apr 29, 2015, at 5:05 PM, joegi.geo via Bokeh Discussion - Public <bokeh@continuum.io> wrote:
Hi,
I wonder if it is possible to do something with the data selected with the lasso tool.
For instance, I want to select a group of data points and I want to compute the mean value of those selected points.Thanks for your help,
jg
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Will equivalent JS callback be available in Rbokeh also?
···
On Wednesday, April 29, 2015 at 6:13:39 PM UTC-4, Bryan Van de ven wrote:
There are two possibilities. You can use a Bokeh server, similar to this example:
[https://github.com/bokeh/bokeh/blob/master/examples/plotting/server/selection_histogram.py](https://github.com/bokeh/bokeh/blob/master/examples/plotting/server/selection_histogram.py)Another (upcoming) option is the “JS callback” to be able to provide rich interactions without a server. This feature is in master, and is in the latest “dev build” (but not the last stable release). Right now you can only specify callbacks on widgets, but it is intended to add callback capability for selection events too.
Thanks,
Bryan
On Apr 29, 2015, at 5:05 PM, joegi.geo via Bokeh Discussion - Public bo...@continuum.io wrote:
Hi,
I wonder if it is possible to do something with the data selected with the lasso tool.
For instance, I want to select a group of data points and I want to compute the mean value of those selected points.
Thanks for your help,
jg
–
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There's no reason it can't be, and I expect it would not be difficult to add support for it. You might want to ping the rBokeh project about it on their issue tracker:
https://github.com/bokeh/rbokeh/issues
Bryan
···
On Apr 30, 2015, at 9:13 AM, Jtemp <rtempl31@gmail.com> wrote:
Will equivalent JS callback be available in Rbokeh also?
On Wednesday, April 29, 2015 at 6:13:39 PM UTC-4, Bryan Van de ven wrote:
There are two possibilities. You can use a Bokeh server, similar to this example:https://github.com/bokeh/bokeh/blob/master/examples/plotting/server/selection_histogram.py
Another (upcoming) option is the "JS callback" to be able to provide rich interactions without a server. This feature is in master, and is in the latest "dev build" (but not the last stable release). Right now you can only specify callbacks on widgets, but it is intended to add callback capability for selection events too.
Thanks,
Bryan
> On Apr 29, 2015, at 5:05 PM, joegi.geo via Bokeh Discussion - Public <bo...@continuum.io> wrote:
>
> Hi,
>
> I wonder if it is possible to do something with the data selected with the lasso tool.
> For instance, I want to select a group of data points and I want to compute the mean value of those selected points.
>
>
> Thanks for your help,
>
> jg
>
> --
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Anything that’s available on the javascript side should technically be available in rbokeh since rbokeh is just an interface that generates the model sent to BokehJS. It’s a question of how to make it available at the R level as opposed to javascript. I’ll have to wait and see what the API looks like for selection event callbacks (I don’t see anything yet in the dev docs) but I would imagine it would be easy to expose in R.
···
On Apr 30, 2015, at 7:13 AM, Jtemp rtempl31@gmail.com wrote:
Will equivalent JS callback be available in Rbokeh also?
On Wednesday, April 29, 2015 at 6:13:39 PM UTC-4, Bryan Van de ven wrote:
There are two possibilities. You can use a Bokeh server, similar to this example:
[https://github.com/bokeh/bokeh/blob/master/examples/plotting/server/selection_histogram.py](https://github.com/bokeh/bokeh/blob/master/examples/plotting/server/selection_histogram.py)Another (upcoming) option is the “JS callback” to be able to provide rich interactions without a server. This feature is in master, and is in the latest “dev build” (but not the last stable release). Right now you can only specify callbacks on widgets, but it is intended to add callback capability for selection events too.
Thanks,
Bryan
On Apr 29, 2015, at 5:05 PM, joegi.geo via Bokeh Discussion - Public bo...@continuum.io wrote:
Hi,
I wonder if it is possible to do something with the data selected with the lasso tool.
For instance, I want to select a group of data points and I want to compute the mean value of those selected points.
Thanks for your help,
jg
–
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Ryan,
They are on a test staging deploy of the docs currently. Check out:
http://bokeh.pydata.org/en/test/docs/user_guide/interaction.html#callbacks-for-widgets
and
http://bokeh.pydata.org/en/test/docs/reference/models.html#bokeh.models.actions.Callback
Bryan
···
On Apr 30, 2015, at 1:15 PM, Ryan Hafen <rhafen@gmail.com> wrote:
Anything that’s available on the javascript side should technically be available in rbokeh since rbokeh is just an interface that generates the model sent to BokehJS. It’s a question of how to make it available at the R level as opposed to javascript. I’ll have to wait and see what the API looks like for selection event callbacks (I don’t see anything yet in the dev docs) but I would imagine it would be easy to expose in R.
On Apr 30, 2015, at 7:13 AM, Jtemp <rtempl31@gmail.com> wrote:
Will equivalent JS callback be available in Rbokeh also?
On Wednesday, April 29, 2015 at 6:13:39 PM UTC-4, Bryan Van de ven wrote:
There are two possibilities. You can use a Bokeh server, similar to this example:https://github.com/bokeh/bokeh/blob/master/examples/plotting/server/selection_histogram.py
Another (upcoming) option is the "JS callback" to be able to provide rich interactions without a server. This feature is in master, and is in the latest "dev build" (but not the last stable release). Right now you can only specify callbacks on widgets, but it is intended to add callback capability for selection events too.
Thanks,
Bryan
> On Apr 29, 2015, at 5:05 PM, joegi.geo via Bokeh Discussion - Public <bo...@continuum.io> wrote:
>
> Hi,
>
> I wonder if it is possible to do something with the data selected with the lasso tool.
> For instance, I want to select a group of data points and I want to compute the mean value of those selected points.
>
>
> Thanks for your help,
>
> jg
>
> --
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Hi Bryan,
Pretty much that is what I want to do (https://github.com/bokeh/bokeh/blob/master/examples/plotting/server/selection_histogram.py
)
However, it seems that the script is not working properly. I think the histograms should update when I do the brushing but nothing happens.
Joel
···
On Thursday, April 30, 2015 at 12:06:26 AM UTC+2, joe gi wrote:
Hi,
I wonder if it is possible to do something with the data selected with the lasso tool.
For instance, I want to select a group of data points and I want to compute the mean value of those selected points.Thanks for your help,
jg
Hi Joe, we would need more information to try and help with this: What version of Bokeh? How was it installed? What platform, browser, etc? How did you start bokeh-server?
Thanks,
Bryan
···
On May 4, 2015, at 7:15 AM, 'joe gi' via Bokeh Discussion - Public <bokeh@continuum.io> wrote:
Hi Bryan,
Pretty much that is what I want to do (https://github.com/bokeh/bokeh/blob/master/examples/plotting/server/selection_histogram.py )
However, it seems that the script is not working properly. I think the histograms should update when I do the brushing but nothing happens.
Joel
On Thursday, April 30, 2015 at 12:06:26 AM UTC+2, joe gi wrote:
Hi,I wonder if it is possible to do something with the data selected with the lasso tool.
For instance, I want to select a group of data points and I want to compute the mean value of those selected points.Thanks for your help,
jg
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Hi,
I am using anaconda 2.2.0, bokeh 0.8.2, iptyhon 3.1.0.
I am running the example from an ipython notebook.
My browser is firebox
I run the server from the terminal as follows: bokeh-server
Hi Joe, we would need more information to try and help with this: What version of Bokeh? How was it installed? What platform, browser, etc? How did you start bokeh-server?
Thanks,
Bryan
···
On Monday, May 4, 2015 3:11 PM, Bryan Van de Ven bryan@bokeh.org wrote:
On May 4, 2015, at 7:15 AM, ‘joe gi’ via Bokeh Discussion - Public bokeh@continuum.io wrote:
Hi Bryan,
Pretty much that is what I want to do (https://github.com/bokeh/bokeh/blob/master/examples/plotting/server/selection_histogram.py )
However, it seems that the script is not working properly. I think the histograms should update when I do the brushing but nothing happens.
Joel
On Thursday, April 30, 2015 at 12:06:26 AM UTC+2, joe gi wrote:
Hi,I wonder if it is possible to do something with the data selected with the lasso tool.
For instance, I want to select a group of data points and I want to compute the mean value of those selected points.Thanks for your help,
jg
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Do yo have redis installed? Can you try running the server "bokeh-server --dev" and then report back if there are any errors either i) in the console where the server is started, or ii) in the browser console?
Thanks,
Bryan
···
On May 5, 2015, at 7:51 AM, 'Joel Guerrero' via Bokeh Discussion - Public <bokeh@continuum.io> wrote:
Hi,
I am using anaconda 2.2.0, bokeh 0.8.2, iptyhon 3.1.0.
I am running the example from an ipython notebook.
My browser is fireboxI run the server from the terminal as follows: bokeh-server
On Monday, May 4, 2015 3:11 PM, Bryan Van de Ven <bryan@bokeh.org> wrote:
Hi Joe, we would need more information to try and help with this: What version of Bokeh? How was it installed? What platform, browser, etc? How did you start bokeh-server?
Thanks,
Bryan
> On May 4, 2015, at 7:15 AM, 'joe gi' via Bokeh Discussion - Public <bokeh@continuum.io> wrote:
>
> Hi Bryan,
>
> Pretty much that is what I want to do (https://github.com/bokeh/bokeh/blob/master/examples/plotting/server/selection_histogram.py )
>
> However, it seems that the script is not working properly. I think the histograms should update when I do the brushing but nothing happens.
>
>
> Joel
>
> On Thursday, April 30, 2015 at 12:06:26 AM UTC+2, joe gi wrote:
> Hi,
>
> I wonder if it is possible to do something with the data selected with the lasso tool.
> For instance, I want to select a group of data points and I want to compute the mean value of those selected points.
>
>
> Thanks for your help,
>
> jg
>
> --
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no errors
Hi,
I am using anaconda 2.2.0, bokeh 0.8.2, iptyhon 3.1.0.
I am running the example from an ipython notebook.
My browser is firebox
I run the server from the terminal as follows: bokeh-server
Hi Joe, we would need more information to try and help with this: What version of Bokeh? How was it installed? What platform, browser, etc? How did you start bokeh-server?
Thanks,
Bryan
···
On Tuesday, May 5, 2015 3:18 PM, ‘Joel Guerrero’ via Bokeh Discussion - Public bokeh@continuum.io wrote:
On Monday, May 4, 2015 3:11 PM, Bryan Van de Ven bryan@bokeh.org wrote:
On May 4, 2015, at 7:15 AM, ‘joe gi’ via Bokeh Discussion - Public bokeh@continuum.io wrote:
Hi Bryan,
Pretty much that is what I want to do (https://github.com/bokeh/bokeh/blob/master/examples/plotting/server/selection_histogram.py )
However, it seems that the script is not working properly. I think the histograms should update when I do the brushing but nothing happens.
Joel
On Thursday, April 30, 2015 at 12:06:26 AM UTC+2, joe gi wrote:
Hi,I wonder if it is possible to do something with the data selected with the lasso tool.
For instance, I want to select a group of data points and I want to compute the mean value of those selected points.Thanks for your help,
jg
–
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Hi Joel,
Could you try the file example Bryan pointed
[https://github.com/bokeh/bokeh/blob/master/examples/plotting/server/selection_histogram.py](https://github.com/bokeh/bokeh/blob/master/examples/plotting/server/selection_histogram.py)
and not from IPython notebook? It can help us try to understand where’s the issue…
Thank you
···
On Tue, May 5, 2015 at 6:28 PM, ‘Joel Guerrero’ via Bokeh Discussion - Public bokeh@continuum.io wrote:
no errors
On Tuesday, May 5, 2015 3:18 PM, ‘Joel Guerrero’ via Bokeh Discussion - Public bokeh@continuum.io wrote:
Hi,
I am using anaconda 2.2.0, bokeh 0.8.2, iptyhon 3.1.0.
I am running the example from an ipython notebook.
My browser is firebox
I run the server from the terminal as follows: bokeh-server
On Monday, May 4, 2015 3:11 PM, Bryan Van de Ven bryan@bokeh.org wrote:
Hi Joe, we would need more information to try and help with this: What version of Bokeh? How was it installed? What platform, browser, etc? How did you start bokeh-server?
Thanks,
Bryan
On May 4, 2015, at 7:15 AM, ‘joe gi’ via Bokeh Discussion - Public bokeh@continuum.io wrote:
Hi Bryan,
Pretty much that is what I want to do (https://github.com/bokeh/bokeh/blob/master/examples/plotting/server/selection_histogram.py )
However, it seems that the script is not working properly. I think the histograms should update when I do the brushing but nothing happens.
Joel
On Thursday, April 30, 2015 at 12:06:26 AM UTC+2, joe gi wrote:
Hi,I wonder if it is possible to do something with the data selected with the lasso tool.
For instance, I want to select a group of data points and I want to compute the mean value of those selected points.Thanks for your help,
jg
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–
Fabio Pliger
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