Bokeh ticks Some objects have convenience methods Apr 12, 2021 · Hi, I’m trying to produce a chart with a datetime x axis, with ticks spaced at one month using p. Some objects have convenience methods Aug 10, 2022 · You can define a ticker in the Grid. Here is an example of my code: from bokeh. p. Setting to False may be useful to reduce network traffic when dealing with frequently updated objects whose May 30, 2020 · I tried the bokeh. Models for controlling the text and visual formatting of tick labels on Bokeh plot axes. Themes can include settings for parameters such as colors, fonts, or line styles. plotting import figure from bokeh. models. I would like to format the x-axis ticks as "DD/MM HH:SS". For example, with base=10 and mantissas= [1,2,5], the ticker will generate the sequence: Apr 5, 2021 · Trying to set xticks on a bar chart, but the ticks that show up seem to be sequential index numbers rather than the values of the appropriate variable. This example shows how to create a custom TickFormatter class that displays the first tick of every axis as-is, and every subsequent tick as an offset from the first. with missing entries omitted from the chart completely) is not an uncommon request. I can actually make this using negative values for men and positive for women, and then just use vbar(). """) major_code = String(default="", help=""" Callback code to run in the browser to compute minor tick locations for the current viewport. __init__(*args, **kwargs) num_minor_ticks = Int(5, help=""" The number of minor tick positions to generate between adjacent major tick values. I have created a custom TickFormatter (based upon this example) which converts the X/Y pixel coordinates to the appropriate RA/Dec values and generates the appropriate tick label strings. Also, the exponents on the log scale tick labels overlap with the base. For this I chose this code the following scale DatetimeTickFormatter( days=["%a %b %d Jul 23, 2025 · Fortunately, Bokeh provides easy ways to disable scientific notation and format axes to display numbers in a more traditional, readable format. tickers ¶ Models for computing good tick locations on different kinds of plots. formatter = DatetimeTickFormatter(months=["%b %y"]) iIs there a method to specify both spacing and format of Datetime axis ticks? Jul 3, 2020 · I want to make a graph like the bar graph on this page (ignore the red arrows): I don’t need the ‘People Reached vs Your Fans’ part, just the age categories and the women top and men bottom. Additionally available variables are: * ``ticks``, an array of all axis ticks as positioned by the ticker, * ``index``, the position of ``tick`` within ``ticks``, and * the keys of ``args`` mapping, if any. See NumeralTickFormatter. . This includes resizing your plot, changing its lines and colors, and customizing the axes and tools. You can see an example here: Appearance — Bokeh 3. x_length = var_results. Having datetime axes formatted without missing data linearly interpolated (i. syncable = True # Type: Bool Indicates whether this model should be synchronized back to a Bokeh server when updated in a web browser. These objects are made available to the ticker's code snippet as the values of named parameters to the callback. In particular those can be bokeh's models. This value is propagated through any subsequent change notifications that the update triggers. I am new to bokeh and I'm trying to plot some data in a line plot. , heatmaps, contour plots, and images) with ease. You can change the color/alpha/width of the grid lines with the properties below. minor_tick_line_alpha = 1. Here’s a small illustrative example customizing the minor ticks for the x-axis. g. I’ve tried setting all the relevant-seeming LogTicker attributes to no avail. Nov 10, 2025 · Axis ticks # Setting tick locations differs a little bit depending on the plotting extension, interactive backends such as bokeh or plotly dynamically update the ticks, which means fixed tick locations may not be appropriate and the formatters have to be applied in Javascript code. Customize your plots with proper axis formatting and styling. For example, with base=10 and mantissas=[1, 2, 5], the ticker will generate the sequence: Models for controlling the text and visual formatting of tick labels on Bokeh plot axes. CategoricalAxis attributes). for example I have one chart which is a daily chart ie temperature data with the following desired output [wed jan 1,Thu jan 2, Fri jan 3, Sat jan 4,…]. 12. While num_minor_ticks = 5 # Type: Int The number of minor tick positions to generate between adjacent major tick values. The distance in pixels that minor ticks should extend into the main plot area. I would suggest updating the ticker property on the axis object itself so that the grid lines align with the ticks. Jul 23, 2025 · In this article, we'll cover how to hide tick marks on both the X and Y axes, how to customize their appearance, and we’ll provide example code for turning off tick marks in your Bokeh visualizations. This is used to prevent “boomerang” updates to Bokeh apps. Using Themes # With Bokeh’s themes, you can Sep 28, 2020 · Hello !!! Before nothing, thanks for this amazing library !! I need to make a categorial axis with some ticks bold and some ticks not. """) desired_num_ticks = Int(6, help=""" A Line Properties Fill Properties Text Properties Specifying Colors Selecting Plot Objects Plots Dimensions Responsive Dimensions Title Background Border Outline Glyphs Selected & Unselected Glyphs Axes Labels Bounds Tick Locations Tick Lines Tick Label Formats Tick Label Orientation Grids Lines Minor Lines Bands Bounds Legends Location Label The distance in pixels that the major tick labels should be offset from the associated ticks. For example, with base=10 and mantissas= [1,2,5], the ticker will generate the sequence: Dec 25, 2015 · For the default tickers, you could increase the value of the `desired_num_ticks` property. See DatetimeTickFormatter When number_formatter is "numeral", format specifies a human-readable format string. 7). 7, bokeh 0. I use the example from the docs. class MercatorTickFormatter(**kwargs) [source] ¶ Bases: bokeh. ticker property, but doing so will no longer align the grid with the axis ticks. This example demonstrates combining multiple glyphs. Some map plot types internally use WebMercator to describe coordinates, plot bounds, etc. 0 ¶ Type Alpha The line alpha of the minor ticks. Pan and zoom the plot below and watch the x-axis. minor_tick_line_cap = 'butt' ¶ Type Enum (LineCap) The line cap of the minor ticks. plott I am working on the Bokeh (0. That might be OK for your use case if no zoom is enabled. No set of integers in mantissas Creates ticks that are “base” multiples of a set of given mantissas. transform import factor_cmap from bokeh. The x-axis, y-axis and thus the ticks should have a different size than default. 1 using bokeh. It seamlessly integrates with libraries like Bokeh and Matplotlib, allowing users to generate complex plots (e. When number_formatter is "printf", format is a printf-style format string Jun 20, 2023 · Hi there, I’m trying to make a box plot with some values spanning ~3 orders of magnitude on a log y axis. Without defining any tick param The variable ``tick`` will contain the unformatted tick value and can be expected to be present in the code snippet namespace at render time. 012% In particular those can be bokeh's models. These units are not very human-friendly. desired_num_ticks = 20 Note that "desired_num_ticks" is a *suggestion*. Applying Details format parameter: When number_formatter is "basic" and the axis type is datetime, format specifies how to display tick values from a continuous range as formatted datetimes. ScientifcFormatter mentioned in this PR, can’t figure out how to use it for ticks, but it seems like it is only available for table cells. Some objects have convenience methods bokeh. minor_tick_line_color = 'black' ¶ Type Nullable (Color) The line color of the minor ticks. tickers. index * 5. So if I want an xtick every 2 months: 1000msec X 60 sec X 60 min X 24 bokeh. I understand how you specify specific ticks to show in Bokeh, but my question is if there is a way to assign a specific label to show versus the position. 1) tutorial and trying to turn off the tick marks and labels in one of the exercise plots, the scatter plot: from __future__ import division import numpy as np from Jul 8, 2024 · I created a independent colorbar with EqHistColorMapper and any one type of Ticker, but no any ticks on it, and, if I used the LinearColorMapper and FixedTicker or SingleIntervalTicker, this problem did not arise, could anybody tell me how to solve this problem? example codes: from bokeh. I have tried lots of different workarounds found in the internet but apparently you can’t manually define minor ticks in bokeh and I couldn’t find a single topic talking about the self overlap on the labels Using themes: Bokeh’s themes are a set of pre-defined design parameters that you can apply to your plots. palettes import Spectral6 output_file("wells. First steps 4: Customizing your plot # In the previous first steps guides, you generated different glyphs and added more information such as a title, legend, and annotations. ticker. , Fixed, SingleInterval). The x-axis is datetime, displaying a user-defined number of days (the date range defaults to 31 days). We’ll also provide examples to illustrate how to use custom tick labels in your Bokeh visualizations. Oct 12, 2023 · I have custom x-axis labels per irregular intervals (details: numeric trade time offsets, with non-trading time periods, which is irregularly organized in history, stripped off the timeline), the best option so far as I know, is to use FixedTicker on computed boundary x-values labeled with natural Mar 29, 2023 · okay- wanted to use bokeh to make a graph comparing yahoofinance Toronto Stock Exchange data to my own portfolio. 3. from bokeh. Jul 25, 2018 · We are trying to experiment with bokeh coming from a Pandas & matplotlib environment. 5 Multiplying the index by 5. precision = 'auto' ¶ Type Either (Auto, Int) How many digits of precision to display in tick labels. 5. ticker = MonthsTicker(months=(4,5,6,7,8,9,10,11,12,1,2,3)) however I would also like to specify the format of the label e. ContinuousTicker Generate “nice” round ticks at any magnitude. syncable = True ¶ Type Bool Indicates whether this model should be synchronized back to a Bokeh server when updated in a web browser. I don’t know what this is called in bokeh terminology, but matplotlib allows you set every xtick label explicitly like: plt. 000e+8. formatters. Jul 26, 2021 · Hello guys, I’m trying to plot price on log scale and i can’t get the minor ticks to show on the y-axis. Oct 23, 2025 · This guide is your friendly companion, designed to walk you through the ins and outs of setting x-axis ticks in Bokeh, ensuring your visualizations are both informative and aesthetically pleasing. Mar 3, 2025 · I’m trying to create a plot with two “categorical” axis: the left-vertical axis is a real categorical axis: each category is unique. io import output_file, show from bokeh. I am relatively new to python and I am using bokeh to create a html file that plots some timeseries data. xaxis [0]. 2 i m trying out the Jun 11, 2020 · Some of the tickers use the num_minor_ticks property, which sets the number of minor ticks between major ticks. models import ColorBar Styling plot elements # Selecting plot objects # If you want to customize the appearance of any element of your Bokeh plot, you first need to identify which object you want to modify. This is only a hint to the ticker, however. This tick formatter will convert WebMercator units into Latitude and 19 hours ago · HoloViews is a powerful Python library for creating interactive visualizations with minimal code. 2 Documentation Thanks, Apr 18, 2015 · Expose desired_num_ticks on tickers by bryevdv · Pull Request #2186 · bokeh/bokeh · GitHub Which you can use by, for example: p. 6. If you want finer grained contril, you might have to use a different ticker than the default (e. A critical aspect of data visualization is controlling the colorbar, which provides context for interpreting color-coded data. As described in Introduction, Bokeh plots are a combination of Python objects that represent all the different parts of your plot: its grids, axes, and glyphs, for example. e. Creates ticks that are “base” multiples of a set of given mantissas. the right-vertical axis is a “fake” categorical axis: it represents a subgroup of some kind. Dec 20, 2023 · I want to change the format of the nested xaxis ticks labels for boxplot chart (major, group and subgroup in terms of bokeh. Specialized axis ticking ¶ This example shows how to create a custom TickFormatter class that displays the first tick of every axis as-is, and every subsequent tick as an offset from the first. BasicTickFormatter A TickFormatter for values in WebMercator units. ygrid [0]. xticks(range(len(xticks)), xticks) Where xticks = [‘a’,‘b Models for computing good tick locations on different kinds of plots. So for example plot. extension('bokeh','matplotlib') crime = us_crime. xaxis. Finding a solution that: works for me, doesn’t use extension models end-users would need NodeJS for, and has the labels formatted in a resolution-adapted manner instead of a fixed string manner as with Feb 8, 2018 · That will create a FixedTicker which is another option, but it will not generate ticks outside the exact ones in df['x']. models import ColumnDataSource, FactorRange from bokeh. Sexagesimal notation is used to label the right ascension (RA) and declination (Dec) axes. names = var_r Jan 9, 2020 · Okay I have a problem in that i dont understand how the DateTimeTickFormatter works for different scales and how to set it based on different scales. I'm just starting to use Bokeh. In this article, we will explore different ways to disable scientific notation on Bokeh axes, including customizing tick formatting and providing example code to showcase these techniques. Mar 8, 2018 · How to specify n-th ticker for bokeh plot from python side, where n is the number of tickers python, plot, bokeh, ticker asked by Royalblue on 04:01AM - 05 Apr 18 UTC Dec 31, 2017 · I have a web app that serves Bokeh plots (uses Bokeh v0. The non working days (weekends and bank holidays) are highlighted with an BoxAnnotation in light [docs] @abstract class ContinuousTicker(Ticker): ''' A base class for non-categorical ticker types. html Guide renderers for various kinds of axes that can be added to Bokeh plots Styling plot elements # Selecting plot objects # If you want to customize the appearance of any element of your Bokeh plot, you first need to identify which object you want to modify. ticker=Fixed 19 hours ago · In this guide, we’ll demystify how to customize Bokeh’s datetime x-axis to show more ticks and labels, ensuring your candlestick charts are both informative and easy to interpret. In this section, you will customize the appearance of the plot as a whole. desired_num_ticks appears to be disregarded. plotting import show, row from bokeh. Aug 2, 2023 · Hello, I am trying to label plots of astronomical objects with appropriate world coordinates. Bokeh <3. For example, adapting from an example found in the docs: import holoviews as hv from hvplot. Bokeh visualization library, documentation site. Models for computing good tick locations on different kinds of plots. Feb 1, 2018 · First post. sample_data import us_crime hv. I’d like to have more major tick values on the y axis than just the integer powers of 10, but I can’t seem to get it to. It does not make sense at all for some tickers (like single interval tickers), so they may ignore it completely. plotting out of the box and DatetimeTickFormatter: BLECHFooey! xaxis only shows a tick every 2 years- dat no good! figured out that AdaptiveTicker speaks in 1/1000 sec intervals. I am writing a simplified versio Models for controlling the text and visual formatting of tick labels on Bokeh plot axes. Setting to False may be useful to reduce network traffic when dealing with frequently updated objects whose updated values we don’t need. ''' # explicit __init__ to support Init signatures def __init__(self, *args, **kwargs) -> None: super(). In the context of a Bokeh server application, incoming updates to properties will be annotated with the session that is doing the updating. We’ll start with a basic candlestick chart, then progressively enhance the x-axis using Bokeh’s built-in tools for formatting and positioning ticks. One of the things that’s missing is plotting series data with an x-axis which is an alphanumeric set of labels. Jul 23, 2025 · In this article, we will explore how to assign custom labels to the ticks in Bokeh, covering different ways to customize ticks for both the X and Y axes. Here is Attempt No. class AdaptiveTicker (**kwargs) ¶ Bases: bokeh. For example, with base=10 and mantissas=[1, 2, 5], the ticker will generate the sequence: Jan 2, 2025 · Learn how to configure axis properties and labels in Python Bokeh using xaxis() and yaxis() methods. Hence, categories might not be unique. Ticker Generate “nice” round ticks at any magnitude. However, now my axis ticks of course still show negative values for the men category (-0. A picture is worth a thousand words, so here is what I’m trying to achieve: Note the red texts on the right: these are The distance in pixels that the major tick labels should be offset from the associated ticks. Is there a way to control the display so that it displays as 500000000? using python 2. The following code is based on Boxplot Chart — HoloViews v1… Models for computing good tick locations on different kinds of plots. Below I create some args I use for the rect figure. read() data = crime[["Year", 'Violent crime total', 'Property crime A Candlestick chart based on stock price data. minor_tick the y axis ticks seem to be formatting numbers like 500000000 to 5. Styling plot elements # Selecting plot objects # If you want to customize the appearance of any element of your Bokeh plot, you first need to identify which object you want to modify. This all works well num_minor_ticks = 5 # Type: Int The number of minor tick positions to generate between adjacent major tick values. 5 gave me more room between labels. class AdaptiveTicker(**kwargs) ¶ Bases: bokeh. okoecki pwn ftdqn zupyeu llwy ied cuceftr ieytdo jtejhu fqfrva jgfh rbryj tyc trkl aqeg