Plotting large dataset

On Mar 19, 2015, at 4:46 AM, jan <jamalumaja@gmail.com> wrote:

I'ld like to plot a long dataset as a line graph in a notebook. At some point (depending on the computer) plotting get's really slow, and finally impossible. I was wondering what could be done to tackle that problem (apart from just working with a smaller dataset).

On the highest zoom level, it would be fine to interpolate the line with much fewer points. With increased zoom, the number of points that are used increases, but everything outside the viewport can be ignored. Would this be something that I could implement through using bokeh server / abstract rendering?

Do any other solutions/ideas come to mindt?

Best, Jan

--
You received this message because you are subscribed to the Google Groups "Bokeh Discussion - Public" group.
To unsubscribe from this group and stop receiving emails from it, send an email to bokeh+unsubscribe@continuum.io.
To post to this group, send email to bokeh@continuum.io.
To view this discussion on the web visit https://groups.google.com/a/continuum.io/d/msgid/bokeh/aaca84ae-02b4-4c56-8aeb-fd3d82c9ef53%40continuum.io\.
For more options, visit https://groups.google.com/a/continuum.io/d/optout\.

On Sat, Mar 21, 2015 at 4:52 PM, Bryan Van de Ven bryanv@continuum.io wrote:

Hi Jan,

You can definitely implement server downsampling strategies of your own to run on the Bokeh Server. We are working on exposing several options for this sort of thing (abstract rendering, downsampling using blaze) but I would characterize those particular parts of Bokeh as still “beta”. Happy to help with either route though. For current examples of apps you can look here:

    [https://github.com/bokeh/bokeh/tree/master/examples/app](https://github.com/bokeh/bokeh/tree/master/examples/app)

Though note there is an open PR (https://github.com/bokeh/bokeh/pull/1881) that introduces a simpler app process. It should be merged in the next week or so. We will also hopefully have a proper downsample example in the Bokeh repo soon as well.

Thanks,

Bryan

On Mar 19, 2015, at 4:46 AM, jan jamalumaja@gmail.com wrote:

I’ld like to plot a long dataset as a line graph in a notebook. At some point (depending on the computer) plotting get’s really slow, and finally impossible. I was wondering what could be done to tackle that problem (apart from just working with a smaller dataset).

On the highest zoom level, it would be fine to interpolate the line with much fewer points. With increased zoom, the number of points that are used increases, but everything outside the viewport can be ignored. Would this be something that I could implement through using bokeh server / abstract rendering?

Do any other solutions/ideas come to mindt?

Best, Jan

–

You received this message because you are subscribed to the Google Groups “Bokeh Discussion - Public” group.

To unsubscribe from this group and stop receiving emails from it, send an email to bokeh+unsubscribe@continuum.io.

To post to this group, send email to bokeh@continuum.io.

To view this discussion on the web visit https://groups.google.com/a/continuum.io/d/msgid/bokeh/aaca84ae-02b4-4c56-8aeb-fd3d82c9ef53%40continuum.io.

For more options, visit https://groups.google.com/a/continuum.io/d/optout.

–

You received this message because you are subscribed to the Google Groups “Bokeh Discussion - Public” group.

To unsubscribe from this group and stop receiving emails from it, send an email to bokeh+unsubscribe@continuum.io.

To post to this group, send email to bokeh@continuum.io.

To view this discussion on the web visit https://groups.google.com/a/continuum.io/d/msgid/bokeh/3C3AD301-CBB3-40CB-A3E6-81B5AEDC306B%40continuum.io.
For more options, visit https://groups.google.com/a/continuum.io/d/optout.

Den lördag 21 mars 2015 kl. 21:52:33 UTC+1 skrev Bryan Van de ven:

Hi Jan,

You can definitely implement server downsampling strategies of your own to run on the Bokeh Server. We are working on exposing several options for this sort of thing (abstract rendering, downsampling using blaze) but I would characterize those particular parts of Bokeh as still “beta”. Happy to help with either route though. For current examples of apps you can look here:

    [https://github.com/bokeh/bokeh/tree/master/examples/app](https://github.com/bokeh/bokeh/tree/master/examples/app)

Though note there is an open PR (https://github.com/bokeh/bokeh/pull/1881) that introduces a simpler app process. It should be merged in the next week or so. We will also hopefully have a proper downsample example in the Bokeh repo soon as well.

Thanks,

Bryan

On Mar 19, 2015, at 4:46 AM, jan jamal...@gmail.com wrote:

I’ld like to plot a long dataset as a line graph in a notebook. At some point (depending on the computer) plotting get’s really slow, and finally impossible. I was wondering what could be done to tackle that problem (apart from just working with a smaller dataset).

On the highest zoom level, it would be fine to interpolate the line with much fewer points. With increased zoom, the number of points that are used increases, but everything outside the viewport can be ignored. Would this be something that I could implement through using bokeh server / abstract rendering?

Do any other solutions/ideas come to mindt?

Best, Jan

–
You received this message because you are subscribed to the Google Groups “Bokeh Discussion - Public” group.

To unsubscribe from this group and stop receiving emails from it, send an email to bokeh+un...@continuum.io.

To post to this group, send email to bo...@continuum.io.

To view this discussion on the web visit https://groups.google.com/a/continuum.io/d/msgid/bokeh/aaca84ae-02b4-4c56-8aeb-fd3d82c9ef53%40continuum.io.

For more options, visit https://groups.google.com/a/continuum.io/d/optout.

On Saturday, March 21, 2015 at 9:52:33 PM UTC+1, Bryan Van de ven wrote:

Hi Jan,

You can definitely implement server downsampling strategies of your own to run on the Bokeh Server. We are working on exposing several options for this sort of thing (abstract rendering, downsampling using blaze) but I would characterize those particular parts of Bokeh as still “beta”. Happy to help with either route though. For current examples of apps you can look here:

    [https://github.com/bokeh/bokeh/tree/master/examples/app](https://github.com/bokeh/bokeh/tree/master/examples/app)

Though note there is an open PR (https://github.com/bokeh/bokeh/pull/1881) that introduces a simpler app process. It should be merged in the next week or so. We will also hopefully have a proper downsample example in the Bokeh repo soon as well.

Thanks,

Bryan

On Mar 19, 2015, at 4:46 AM, jan jamal...@gmail.com wrote:

I’ld like to plot a long dataset as a line graph in a notebook. At some point (depending on the computer) plotting get’s really slow, and finally impossible. I was wondering what could be done to tackle that problem (apart from just working with a smaller dataset).

On the highest zoom level, it would be fine to interpolate the line with much fewer points. With increased zoom, the number of points that are used increases, but everything outside the viewport can be ignored. Would this be something that I could implement through using bokeh server / abstract rendering?

Do any other solutions/ideas come to mindt?

Best, Jan

–
You received this message because you are subscribed to the Google Groups “Bokeh Discussion - Public” group.

To unsubscribe from this group and stop receiving emails from it, send an email to bokeh+un...@continuum.io.

To post to this group, send email to bo...@continuum.io.

To view this discussion on the web visit https://groups.google.com/a/continuum.io/d/msgid/bokeh/aaca84ae-02b4-4c56-8aeb-fd3d82c9ef53%40continuum.io.

For more options, visit https://groups.google.com/a/continuum.io/d/optout.