many labels on x-axis

Community Support
1

Hi guys,

Is there a good way to skip some values and only show range on x-axis ? If there are so many labels are displayed on x-axis, user may not easily read them.

Please refer to screenshots shown below.

Thanks

2

Hi,

It looks like you have a categorical axis/range? There is a method presented here:

  python - How to show only evey nth categorical tickers in Bokeh - Stack Overflow

Thanks,

Bryan

···

On Aug 7, 2018, at 09:44, peng wang <[email protected]> wrote:

Hi guys,

Is there a good way to skip some values and only show range on x-axis ? If there are so many labels are displayed on x-axis, user may not easily read them.

Please refer to screenshots shown below.

Thanks

--
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 [email protected].
To post to this group, send email to [email protected].
To view this discussion on the web visit https://groups.google.com/a/continuum.io/d/msgid/bokeh/980a5c1e-91c8-4a9a-a3ce-413b39d9f6e2%40continuum.io\.
For more options, visit https://groups.google.com/a/continuum.io/d/optout\.

3

Thanks for fast response. I added the code and then get this error as screenshot below. even I install nodejs in my virtual env. any idea?

···

On Tuesday, August 7, 2018 at 10:51:44 AM UTC-6, Bryan Van de ven wrote:

Hi,

It looks like you have a categorical axis/range? There is a method presented here:

    [https://stackoverflow.com/questions/49172201/how-to-show-only-evey-nth-categorical-tickers-in-bokeh](https://stackoverflow.com/questions/49172201/how-to-show-only-evey-nth-categorical-tickers-in-bokeh)

Thanks,

Bryan

On Aug 7, 2018, at 09:44, peng wang [email protected] wrote:

Hi guys,

Is there a good way to skip some values and only show range on x-axis ? If there are so many labels are displayed on x-axis, user may not easily read them.

Please refer to screenshots shown below.

Thanks

–
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 [email protected].

To post to this group, send email to [email protected].

To view this discussion on the web visit https://groups.google.com/a/continuum.io/d/msgid/bokeh/980a5c1e-91c8-4a9a-a3ce-413b39d9f6e2%40continuum.io.

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

4

···

On Tuesday, August 7, 2018 at 10:51:44 AM UTC-6, Bryan Van de ven wrote:

Hi,

It looks like you have a categorical axis/range? There is a method presented here:

    [https://stackoverflow.com/questions/49172201/how-to-show-only-evey-nth-categorical-tickers-in-bokeh](https://stackoverflow.com/questions/49172201/how-to-show-only-evey-nth-categorical-tickers-in-bokeh)

Thanks,

Bryan

On Aug 7, 2018, at 09:44, peng wang [email protected] wrote:

Hi guys,

Is there a good way to skip some values and only show range on x-axis ? If there are so many labels are displayed on x-axis, user may not easily read them.

Please refer to screenshots shown below.

Thanks

–
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 [email protected].

To post to this group, send email to [email protected].

To view this discussion on the web visit https://groups.google.com/a/continuum.io/d/msgid/bokeh/980a5c1e-91c8-4a9a-a3ce-413b39d9f6e2%40continuum.io.

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

5

Hi,

I don't have much to add beyond what the error message states. Bokeh requires the ability to find and run a NodeJS executable of a minimum version. Bokeh looks in a few "standard" system places but if it can't find things on its own, you can tell Bokeh the path to the NodeJS executable explicitly by setting the BOKEH_NODEJS_PATH environment variable.

Thanks,

Bryan

···

On Aug 7, 2018, at 10:28, peng wang <[email protected]> wrote:

On Tuesday, August 7, 2018 at 10:51:44 AM UTC-6, Bryan Van de ven wrote:
Hi,

It looks like you have a categorical axis/range? There is a method presented here:

        python - How to show only evey nth categorical tickers in Bokeh - Stack Overflow

Thanks,

Bryan

> On Aug 7, 2018, at 09:44, peng wang <[email protected]> wrote:
>
> Hi guys,
>
> Is there a good way to skip some values and only show range on x-axis ? If there are so many labels are displayed on x-axis, user may not easily read them.
>
> Please refer to screenshots shown below.
>
> Thanks
>
>
>
>
>
>
>
> --
> 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/980a5c1e-91c8-4a9a-a3ce-413b39d9f6e2%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 [email protected].
To post to this group, send email to [email protected].
To view this discussion on the web visit https://groups.google.com/a/continuum.io/d/msgid/bokeh/f854e9a6-d6e4-485d-b0ed-14426a1a1d6c%40continuum.io\.
For more options, visit https://groups.google.com/a/continuum.io/d/optout\.

6

Thanks for the comments. I installed nodejs by *.msi and set environment nariable according to your suggestion. But the problem is still there. I really don’t know where I made mistake. Please give me a hand.

···

On Tuesday, August 7, 2018 at 11:38:45 AM UTC-6, Bryan Van de ven wrote:

Hi,

I don’t have much to add beyond what the error message states. Bokeh requires the ability to find and run a NodeJS executable of a minimum version. Bokeh looks in a few “standard” system places but if it can’t find things on its own, you can tell Bokeh the path to the NodeJS executable explicitly by setting the BOKEH_NODEJS_PATH environment variable.

Thanks,

Bryan

On Aug 7, 2018, at 10:28, peng wang [email protected] wrote:

On Tuesday, August 7, 2018 at 10:51:44 AM UTC-6, Bryan Van de ven wrote:

Hi,

It looks like you have a categorical axis/range? There is a method presented here:

    [https://stackoverflow.com/questions/49172201/how-to-show-only-evey-nth-categorical-tickers-in-bokeh](https://stackoverflow.com/questions/49172201/how-to-show-only-evey-nth-categorical-tickers-in-bokeh)

Thanks,

Bryan

On Aug 7, 2018, at 09:44, peng wang [email protected] wrote:

Hi guys,

Is there a good way to skip some values and only show range on x-axis ? If there are so many labels are displayed on x-axis, user may not easily read them.

Please refer to screenshots shown below.

Thanks

–
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 [email protected].
To post to this group, send email to [email protected].
To view this discussion on the web visit https://groups.google.com/a/continuum.io/d/msgid/bokeh/980a5c1e-91c8-4a9a-a3ce-413b39d9f6e2%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 [email protected].

To post to this group, send email to [email protected].

To view this discussion on the web visit https://groups.google.com/a/continuum.io/d/msgid/bokeh/f854e9a6-d6e4-485d-b0ed-14426a1a1d6c%40continuum.io.

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

7

The env var needs to point to the executable program file, not a directory. (I don't know where it is on your system, that's all I can say).

Bryan

···

On Aug 7, 2018, at 12:58, peng wang <[email protected]> wrote:

Thanks for the comments. I installed nodejs by *.msi and set environment nariable according to your suggestion. But the problem is still there. I really don't know where I made mistake. Please give me a hand.

On Tuesday, August 7, 2018 at 11:38:45 AM UTC-6, Bryan Van de ven wrote:
Hi,

I don't have much to add beyond what the error message states. Bokeh requires the ability to find and run a NodeJS executable of a minimum version. Bokeh looks in a few "standard" system places but if it can't find things on its own, you can tell Bokeh the path to the NodeJS executable explicitly by setting the BOKEH_NODEJS_PATH environment variable.

Thanks,

Bryan

> On Aug 7, 2018, at 10:28, peng wang <[email protected]> wrote:
>
>
>
>
>
> On Tuesday, August 7, 2018 at 10:51:44 AM UTC-6, Bryan Van de ven wrote:
> Hi,
>
> It looks like you have a categorical axis/range? There is a method presented here:
>
> python - How to show only evey nth categorical tickers in Bokeh - Stack Overflow
>
> Thanks,
>
> Bryan
>
> > On Aug 7, 2018, at 09:44, peng wang <[email protected]> wrote:
> >
> > Hi guys,
> >
> > Is there a good way to skip some values and only show range on x-axis ? If there are so many labels are displayed on x-axis, user may not easily read them.
> >
> > Please refer to screenshots shown below.
> >
> > Thanks
> >
> >
> >
> >
> >
> >
> >
> > --
> > 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/980a5c1e-91c8-4a9a-a3ce-413b39d9f6e2%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+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/f854e9a6-d6e4-485d-b0ed-14426a1a1d6c%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 [email protected].
To post to this group, send email to [email protected].
To view this discussion on the web visit https://groups.google.com/a/continuum.io/d/msgid/bokeh/4957a1fc-37f4-4445-b155-d3a1bda9457a%40continuum.io\.
For more options, visit https://groups.google.com/a/continuum.io/d/optout\.

8

Thanks, It is almost done. I follow the solution from this link: https://stackoverflow.com/questions/32195288/is-it-possible-to-keep-the-same-amount-of-x-axis-tick-labels-visible-as-the-zoom

I also believe it would meet my needs, Unfortunately, I come across this issue which is so wired and can not be figured out. Thanks for your efforts

···

On Tuesday, August 7, 2018 at 2:07:28 PM UTC-6, Bryan Van de ven wrote:

The env var needs to point to the executable program file, not a directory. (I don’t know where it is on your system, that’s all I can say).

Bryan

On Aug 7, 2018, at 12:58, peng wang [email protected] wrote:

Thanks for the comments. I installed nodejs by *.msi and set environment nariable according to your suggestion. But the problem is still there. I really don’t know where I made mistake. Please give me a hand.

On Tuesday, August 7, 2018 at 11:38:45 AM UTC-6, Bryan Van de ven wrote:

Hi,

I don’t have much to add beyond what the error message states. Bokeh requires the ability to find and run a NodeJS executable of a minimum version. Bokeh looks in a few “standard” system places but if it can’t find things on its own, you can tell Bokeh the path to the NodeJS executable explicitly by setting the BOKEH_NODEJS_PATH environment variable.

Thanks,

Bryan

On Aug 7, 2018, at 10:28, peng wang [email protected] wrote:

On Tuesday, August 7, 2018 at 10:51:44 AM UTC-6, Bryan Van de ven wrote:
Hi,

It looks like you have a categorical axis/range? There is a method presented here:

    [https://stackoverflow.com/questions/49172201/how-to-show-only-evey-nth-categorical-tickers-in-bokeh](https://stackoverflow.com/questions/49172201/how-to-show-only-evey-nth-categorical-tickers-in-bokeh)

Thanks,

Bryan

On Aug 7, 2018, at 09:44, peng wang [email protected] wrote:

Hi guys,

Is there a good way to skip some values and only show range on x-axis ? If there are so many labels are displayed on x-axis, user may not easily read them.

Please refer to screenshots shown below.

Thanks

–
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 [email protected].
To post to this group, send email to [email protected].
To view this discussion on the web visit https://groups.google.com/a/continuum.io/d/msgid/bokeh/980a5c1e-91c8-4a9a-a3ce-413b39d9f6e2%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 [email protected].
To post to this group, send email to [email protected].
To view this discussion on the web visit https://groups.google.com/a/continuum.io/d/msgid/bokeh/f854e9a6-d6e4-485d-b0ed-14426a1a1d6c%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 [email protected].

To post to this group, send email to [email protected].

To view this discussion on the web visit https://groups.google.com/a/continuum.io/d/msgid/bokeh/4957a1fc-37f4-4445-b155-d3a1bda9457a%40continuum.io.

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

9

please ignore it , I will post my solution later. generally, it works

···

On Tuesday, August 7, 2018 at 3:33:11 PM UTC-6, peng wang wrote:

Thanks, It is almost done. I follow the solution from this link: https://stackoverflow.com/questions/32195288/is-it-possible-to-keep-the-same-amount-of-x-axis-tick-labels-visible-as-the-zoom

I also believe it would meet my needs, Unfortunately, I come across this issue which is so wired and can not be figured out. Thanks for your efforts

On Tuesday, August 7, 2018 at 2:07:28 PM UTC-6, Bryan Van de ven wrote:

The env var needs to point to the executable program file, not a directory. (I don’t know where it is on your system, that’s all I can say).

Bryan

On Aug 7, 2018, at 12:58, peng wang [email protected] wrote:

Thanks for the comments. I installed nodejs by *.msi and set environment nariable according to your suggestion. But the problem is still there. I really don’t know where I made mistake. Please give me a hand.

On Tuesday, August 7, 2018 at 11:38:45 AM UTC-6, Bryan Van de ven wrote:

Hi,

I don’t have much to add beyond what the error message states. Bokeh requires the ability to find and run a NodeJS executable of a minimum version. Bokeh looks in a few “standard” system places but if it can’t find things on its own, you can tell Bokeh the path to the NodeJS executable explicitly by setting the BOKEH_NODEJS_PATH environment variable.

Thanks,

Bryan

On Aug 7, 2018, at 10:28, peng wang [email protected] wrote:

On Tuesday, August 7, 2018 at 10:51:44 AM UTC-6, Bryan Van de ven wrote:
Hi,

It looks like you have a categorical axis/range? There is a method presented here:

    [https://stackoverflow.com/questions/49172201/how-to-show-only-evey-nth-categorical-tickers-in-bokeh](https://stackoverflow.com/questions/49172201/how-to-show-only-evey-nth-categorical-tickers-in-bokeh)

Thanks,

Bryan

On Aug 7, 2018, at 09:44, peng wang [email protected] wrote:

Hi guys,

Is there a good way to skip some values and only show range on x-axis ? If there are so many labels are displayed on x-axis, user may not easily read them.

Please refer to screenshots shown below.

Thanks

–
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 [email protected].
To post to this group, send email to [email protected].
To view this discussion on the web visit https://groups.google.com/a/continuum.io/d/msgid/bokeh/980a5c1e-91c8-4a9a-a3ce-413b39d9f6e2%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 [email protected].
To post to this group, send email to [email protected].
To view this discussion on the web visit https://groups.google.com/a/continuum.io/d/msgid/bokeh/f854e9a6-d6e4-485d-b0ed-14426a1a1d6c%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 [email protected].

To post to this group, send email to [email protected].

To view this discussion on the web visit https://groups.google.com/a/continuum.io/d/msgid/bokeh/4957a1fc-37f4-4445-b155-d3a1bda9457a%40continuum.io.

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

10

############ Start: Solution ######################

from bokeh.core.properties import Int

class MyTicker(CategoricalTicker):

implementation = “”"

import {CategoricalTicker} from “models/tickers/categorical_ticker”

import * as p from “core/properties”

export class MyTicker extends CategoricalTicker

type: “MyTicker”

@define {

nth: [ p.Int, 1 ]

}

get_ticks: (start, end, range, cross_loc) →

ticks = super(start, end, range, cross_loc)

ticks.major = ticks.major.filter((element, index) => index % this.nth == 0)

return ticks

“”"

nth = Int(default=1)

main_plot.xaxis.ticker = MyTicker(nth=50)

ticker_cb = CustomJS(args=dict(ticker=main_plot.xaxis[0].ticker), code=“”"

if (Math.abs(cb_obj.start-cb_obj.end) > 20000) {

ticker.nth = 200

}else if (Math.abs(cb_obj.start-cb_obj.end) > 2000) {

ticker.nth = 20

}else if (Math.abs(cb_obj.start-cb_obj.end) > 30) {

ticker.nth = 10

}else {

ticker.nth = 1

}

“”")

main_plot.x_range.js_on_change(‘start’, ticker_cb)

main_plot.x_range.js_on_change(‘end’, ticker_cb)

############# End: Solution ####################

Thanks.

···

On Tuesday, August 7, 2018 at 3:49:38 PM UTC-6, peng wang wrote:

please ignore it , I will post my solution later. generally, it works

On Tuesday, August 7, 2018 at 3:33:11 PM UTC-6, peng wang wrote:

Thanks, It is almost done. I follow the solution from this link: https://stackoverflow.com/questions/32195288/is-it-possible-to-keep-the-same-amount-of-x-axis-tick-labels-visible-as-the-zoom

I also believe it would meet my needs, Unfortunately, I come across this issue which is so wired and can not be figured out. Thanks for your efforts

On Tuesday, August 7, 2018 at 2:07:28 PM UTC-6, Bryan Van de ven wrote:

The env var needs to point to the executable program file, not a directory. (I don’t know where it is on your system, that’s all I can say).

Bryan

On Aug 7, 2018, at 12:58, peng wang [email protected] wrote:

Thanks for the comments. I installed nodejs by *.msi and set environment nariable according to your suggestion. But the problem is still there. I really don’t know where I made mistake. Please give me a hand.

On Tuesday, August 7, 2018 at 11:38:45 AM UTC-6, Bryan Van de ven wrote:

Hi,

I don’t have much to add beyond what the error message states. Bokeh requires the ability to find and run a NodeJS executable of a minimum version. Bokeh looks in a few “standard” system places but if it can’t find things on its own, you can tell Bokeh the path to the NodeJS executable explicitly by setting the BOKEH_NODEJS_PATH environment variable.

Thanks,

Bryan

On Aug 7, 2018, at 10:28, peng wang [email protected] wrote:

On Tuesday, August 7, 2018 at 10:51:44 AM UTC-6, Bryan Van de ven wrote:
Hi,

It looks like you have a categorical axis/range? There is a method presented here:

    [https://stackoverflow.com/questions/49172201/how-to-show-only-evey-nth-categorical-tickers-in-bokeh](https://stackoverflow.com/questions/49172201/how-to-show-only-evey-nth-categorical-tickers-in-bokeh)

Thanks,

Bryan

On Aug 7, 2018, at 09:44, peng wang [email protected] wrote:

Hi guys,

Is there a good way to skip some values and only show range on x-axis ? If there are so many labels are displayed on x-axis, user may not easily read them.

Please refer to screenshots shown below.

Thanks

–
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 [email protected].
To post to this group, send email to [email protected].
To view this discussion on the web visit https://groups.google.com/a/continuum.io/d/msgid/bokeh/980a5c1e-91c8-4a9a-a3ce-413b39d9f6e2%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 [email protected].
To post to this group, send email to [email protected].
To view this discussion on the web visit https://groups.google.com/a/continuum.io/d/msgid/bokeh/f854e9a6-d6e4-485d-b0ed-14426a1a1d6c%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 [email protected].

To post to this group, send email to [email protected].

To view this discussion on the web visit https://groups.google.com/a/continuum.io/d/msgid/bokeh/4957a1fc-37f4-4445-b155-d3a1bda9457a%40continuum.io.

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