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Python Bokeh tutorial – Interactive Data Visualization with Bokeh

Last Updated : 15 Mar, 2023
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Python Bokeh is a Data Visualization library that provides interactive charts and plots. Bokeh renders its plots using HTML and JavaScript that uses modern web browsers for presenting elegant, concise construction of novel graphics with high-level interactivity. 

Features of Bokeh:

  • Flexibility: Bokeh can be used for common plotting requirements and for custom and complex use-cases.
  • Productivity: Its interaction with other popular Pydata tools (such as Pandas and Jupyter notebook) is very easy.
  • Interactivity: It creates interactive plots that change with the user interaction.
  • Powerful: Generation of visualizations for specialized use-cases can be done by adding JavaScript.
  • Shareable: Visual data are shareable. They can also be rendered in Jupyter notebooks.
  • Open source: Bokeh is an open-source project.

Python Bokeh Tutorial

This tutorial aims at providing insight to Bokeh using well-explained concepts and examples with the help of a huge dataset. So let’s dive deep into the Bokeh and learn all it from basic to advance.

Table Of Content
 

Installation

Bokeh is supported by CPython 3.6 and older with both standard distribution and anaconda distribution. Bokeh package has the following dependencies.

1. Required Dependencies

  • PyYAML>=3.10
  • python-dateutil>=2.1
  • Jinja2>=2.7
  • numpy>=1.11.3
  • pillow>=4.0
  • packaging>=16.8
  • tornado>=5
  • typing_extensions >=3.7.4

2. Optional Dependencies

  • Jupyter
  • NodeJS
  • NetworkX
  • Pandas
  • psutil
  • Selenium, GeckoDriver, Firefox
  • Sphinx

Bokeh can be installed using both conda package manager and pip. To install it using conda type the below command in the terminal.

conda install bokeh

This will install all the dependencies. If all the dependencies are installed then you can install the bokeh from PyPI using pip. Type the below command in the terminal.

pip install bokeh

Refer to the below article to get detailed information about the installation of Bokeh.

Bokeh Interfaces – Basic Concepts of Bokeh

Bokeh is simple to use as it provides a simple interface to the data scientists who do not want to be distracted by its implementation and also provides a detailed interface to developers and software engineers who may want more control over the Bokeh to create more sophisticated features. To do this Bokeh follows the layered approach. 

Bokeh.models

This class is the Python Library for Bokeh that contains model classes that handle the JSON data created by Bokeh’s JavaScript library (BokehJS). Most of the models are very basic consisting of very few attributes or no methods.

bokeh.plotting

This is the mid-level interface that provides Matplotlib or MATLAB like features for plotting. It deals with the data that is to be plotted and creating the valid axes, grids, and tools. The main class of this interface is the Figure class.

Getting Started

After the installation and learning about the basic concepts of Bokeh let’s create a simple plot.

Example:

Python3




# importing the modules 
from bokeh.plotting import figure, output_file, show 
  
# instantiating the figure object 
graph = figure(title = "Bokeh Line Graph"
  
# the points to be plotted 
x = [1, 2, 3, 4, 5
y = [5, 4, 3, 2, 1
  
# plotting the line graph 
graph.line(x, y) 
  
# displaying the model 
show(graph)


Output:

Bokeh Tutorial simple plot

In the above example, we have created a simple Plot with the Title as Bokeh Line Graph. If you are using Jupyter then the output will be created in a new tab in the browser.

Annotations and Legends

Annotations are the supplemental information such as titles, legends, arrows, etc that can be added to the graphs. In the above example, we have already seen how to add the titles to the graph. In this section, we will see about the legends.

Adding legends to your figures can help to properly describe and define them. Hence, giving more clarity. Legends in Bokeh are simple to implement. They can be basic, automatically grouped, manually mentioned, explicitly indexed, and also interactive.

Example:

Python3




# importing the modules
from bokeh.plotting import figure, output_file, show
  
# instantiating the figure object
graph = figure(title="Bokeh Line Graph")
  
# the points to be plotted
x = [1, 2, 3, 4, 5]
y = [5, 4, 3, 2, 1]
  
# plotting the 1st line graph
graph.line(x, x, legend_label="Line 1")
  
# plotting the 2nd line graph with a
# different color
graph.line(y, x, legend_label="Line 2",
           line_color="green")
  
# displaying the model
show(graph)


Output:

Bokeh tutorial annotations and legends

In the above example, we have plotted two different lines with a legend that simply states that which is line 1 and which is line 2. The color in the legends is also differentiated by the color.

Refer to the below articles to get detailed information about the annotations and legends

Customizing Legends

Legends in Bokeh can be customized using the following properties.

Property Description
legend.label_text_font  change default label font to specified font name
legend.label_text_font_size  font size in points
legend.location  set the label at specified location.
legend.title  set title for legend label 
legend.orientation  set to horizontal (default) or vertical
legend.clicking_policy  specify what should happen when legend is clicked

Example:

Python3




# importing the modules
from bokeh.plotting import figure, output_file, show
  
# instantiating the figure object
graph = figure(title="Bokeh Line Graph")
  
# the points to be plotted
x = [1, 2, 3, 4, 5]
y = [5, 4, 3, 2, 1]
  
# plotting the 1st line graph
graph.line(x, x, legend_label="Line 1")
  
# plotting the 2nd line graph with a
# different color
graph.line(y, x, legend_label="Line 2",
           line_color="green")
  
graph.legend.title = "Title of the legend"
graph.legend.location ="top_left"
graph.legend.label_text_font_size = "17pt"
  
# displaying the model
show(graph)


Output:

bokeh tutorial customize legend

Plotting Different Types of Plots

Glyphs in Bokeh terminology means the basic building blocks of the Bokeh plots such as lines, rectangles, squares, etc. Bokeh plots are created using the bokeh.plotting interface which uses a default set of tools and styles.

Line Plot

Line charts are used to represent the relation between two data X and Y on a different axis. A line plot can be created using the line() method of the plotting module.

Syntax:

line(parameters)

Example:

Python3




# importing the modules 
from bokeh.plotting import figure, output_file, show 
  
# instantiating the figure object 
graph = figure(title = "Bokeh Line Graph"
  
# the points to be plotted 
x = [1, 2, 3, 4, 5
y = [5, 4, 3, 2, 1
  
# plotting the line graph 
graph.line(x, y) 
  
# displaying the model 
show(graph)


Output:

bokeh tutorial line plot

Refer to the below articles to get detailed information about the line plots.

Bar Plot

Bar plot or Bar chart is a graph that represents the category of data with rectangular bars with lengths and heights that is proportional to the values which they represent. It can be of two types horizontal bars and vertical bars. Each can be created using the hbar() and vbar() functions of the plotting interface respectively.

Syntax:

hbar(parameters)

vbar(parameters)

Example 1: Creating horizontal bars.

Python3




# importing the modules 
from bokeh.plotting import figure, output_file, show 
  
# instantiating the figure object 
graph = figure(title = "Bokeh Bar Graph"
  
# the points to be plotted 
x = [1, 2, 3, 4, 5
y = [1, 2, 3, 4, 5]  
  
# height / thickness of the plot
height = 0.5
  
# plotting the bar graph 
graph.hbar(x, right = y, height = height) 
  
# displaying the model 
show(graph)


Output:

bokeh tutorial hbar

Example 2: Creating the vertical bars

Python3




# importing the modules 
from bokeh.plotting import figure, output_file, show 
  
# instantiating the figure object 
graph = figure(title = "Bokeh Bar Graph"
  
# the points to be plotted 
x = [1, 2, 3, 4, 5
y = [1, 2, 3, 4, 5]  
  
# height / thickness of the plot
width = 0.5
  
# plotting the bar graph 
graph.vbar(x, top = y, width = width) 
  
# displaying the model 
show(graph)


Output:

bokeh tutorial vbar

Refer to the below articles to get detailed information about the bar charts.

Scatter Plot

A scatter plot is a set of dotted points to represent individual pieces of data in the horizontal and vertical axis. A graph in which the values of two variables are plotted along X-axis and Y-axis, the pattern of the resulting points reveals a correlation between them. It can be plotted using the scatter() method of the plotting module.

Syntax:

scatter(parameters)

Example:

Python3




# importing the modules 
from bokeh.plotting import figure, output_file, show 
from bokeh.palettes import magma 
import random 
  
      
# instantiating the figure object 
graph = figure(title = "Bokeh Scatter Graph"
  
# points to be plotted 
x = [n for n in range(256)] 
y = [random.random() + 1 for n in range(256)] 
  
  
# plotting the graph 
graph.scatter(x, y) 
  
# displaying the model 
show(graph)


Output:

bokeh tutorial scatter plot

Refer to the below articles to get detailed information about the scatter plots.

Patch Plot

Patch Plot shades a region of area to show a group having same properties. It can be created using the patch() method of the plotting module.

Syntax:

patch(parameters)

Example:

Python3




# importing the modules 
from bokeh.plotting import figure, output_file, show 
from bokeh.palettes import magma 
import random 
  
      
# instantiating the figure object 
graph = figure(title = "Bokeh Patch Plo"
  
# points to be plotted 
x = [n for n in range(256)] 
y = [random.random() + 1 for n in range(256)] 
  
# plotting the graph 
graph.patch(x, y) 
  
# displaying the model 
show(graph)


Output:

patch plot bokeh tutorial

Refer to the below articles to get detailed information about the Patch Plot.

Area Plot

Area plots are defined as the filled regions between two series that share a common areas. Bokeh Figure class has two methods which are – varea(), harea()

Syntax:

varea(x, y1, y2, **kwargs)

harea(x1, x2, y, **kwargs)

Example 1: Creating vertical area plot

Python




# Implementation of bokeh function
import numpy as np 
from bokeh.plotting import figure, output_file, show 
      
x = [1, 2, 3, 4, 5
y1 = [2, 4, 5, 2, 4
y2 = [1, 2, 2, 3, 6
  
p = figure(plot_width=300, plot_height=300
  
# area plot 
p.varea(x=x, y1=y1, y2=y2,fill_color="green"
  
show(p)


Output:

Example 2: Creating horizontal area plot

Python3




# Implementation of bokeh function 
      
import numpy as np 
from bokeh.plotting import figure, output_file, show 
      
y = [1, 2, 3, 4, 5
x1 = [2, 4, 5, 2, 4
x2 = [1, 2, 2, 3, 6
  
p = figure(plot_width=300, plot_height=300
  
# area plot 
p.harea(x1=x1, x2=x2, y=y,fill_color="green"
  
show(p)


Output:

Refer to the below articles to get detailed information about the area charts

Pie Chart

Bokeh Does not provide a direct method to plot the Pie Chart. It can be created using the wedge() method. In the wedge() function, the primary parameters are the x and y coordinates of the wedge, the radius, the start_angle and the end_angle of the wedge. In order to plot the wedges in such a way that they look like a pie chart, the x, y, and radius parameters of all the wedges will be the same. We will only adjust the start_angle and the end_angle.

Syntax:

wedge(parameters)

Example: 

Python3




# importing the modules 
from bokeh.plotting import figure, output_file, show 
          
# instantiating the figure object 
graph = figure(title = "Bokeh Wedge Graph"
      
# the points to be plotted 
x = 0
y = 0
  
# radius of the wedge 
radius = 15
  
# start angle of the wedge 
start_angle = 1
  
# end angle of the wedge 
end_angle = 2
  
# plotting the graph 
graph.wedge(x, y, radius = radius, 
            start_angle = start_angle, 
            end_angle = end_angle) 
      
# displaying the model 
show(graph) 


Output:

Bokeh Tutorial Pie chart

Refer to the below articles to get detailed information about the pie charts.

Creating Different Shapes

The Figure class in Bokeh allows us create vectorised glyphs of different shapes such as circle, rectangle, oval, polygon, etc. Let’s discuss them in detail.

Circle

Bokeh Figure class following methods to draw circle glyphs which are given below:

  • circle() method is a used to add a circle glyph to the figure and needs x and y coordinates of its center.
  • circle_cross() method is a used to add a circle glyph with a ‘+’ cross through the center to the figure and needs x and y coordinates of its center.
  • circle_x() method is a used to add a circle glyph with a ‘X’ cross through the center. to the figure and needs x and y coordinates of its center.

Example:

Python3




import numpy as np 
from bokeh.plotting import figure, output_file, show 
  
# creating the figure object
plot = figure(plot_width = 300, plot_height = 300
  
plot.circle(x = [1, 2, 3], y = [3, 7, 5], size = 20
  
show(plot) 


Output:

bokeh tutorial circle

Refer to the below articles to get detailed information about the circle glyphs

Oval

oval() method can be used to plot ovals on the graph.

Syntax:

oval(parameters)

Example:

Python3




# importing the modules 
from bokeh.plotting import figure, output_file, show 
  
      
# instantiating the figure object 
graph = figure(title = "Bokeh Oval Graph"
      
# the points to be plotted 
x = [1, 2, 3, 4, 5
y = [i * 2 for i in x] 
  
# plotting the graph 
graph.oval(x, y, 
        height = 0.5
        width = 1
      
# displaying the model 
show(graph) 


Output:

boekh tutorial oval

Refer o the below articles to get detailed information about the oval glyphs.

Triangle

Triangle can be created using the triangle() method.

Syntax:

triangle(parameters)

Example:

Python3




# importing the modules 
from bokeh.plotting import figure, output_file, show 
  
  
# instantiating the figure object 
graph = figure(title = "Bokeh Triangle Graph"
      
# the points to be plotted 
x = 1
y = 1
  
# plotting the graph 
graph.triangle(x, y, size = 150
      
# displaying the model 
show(graph)


Output:

Refer to the below article to get detailed information about the triangles.

Rectangle

Just like circles and ovals rectangle can also be plotted in Bokeh. It can be plotted using the rect() method.

Syntax:

rect(parameters)

Example:

Python3




# importing the modules 
from bokeh.plotting import figure, output_file, show 
  
          
# instantiating the figure object 
graph = figure(title = "Bokeh Rectangle Graph", match_aspect = True
  
# the points to be plotted 
x = 0
y = 0
width = 10
height = 5
  
# plotting the graph 
graph.rect(x, y, width, height) 
      
# displaying the model 
show(graph) 


Output:

bokeh tutorial rectanlge

Polygon

Bokeh can also be used to plot multiple polygons on a graph. Plotting multiple polygons on a graph can be done using the multi_polygons() method of the plotting module.

Syntax:

multi_polygons(parameters)

Example:

Python3




# importing the modules 
from bokeh.plotting import figure, output_file, show 
  
      
# instantiating the figure object 
graph = figure(title = "Bokeh Multiple Polygons Graph"
      
# the points to be plotted 
xs = [[[[1, 1, 3, 4]]]] 
ys = [[[[1, 3, 2 ,1]]]] 
      
# plotting the graph 
graph.multi_polygons(xs, ys) 
      
# displaying the model 
show(graph) 


Output:

bokeh tutorial ploygon

Refer to the below articles to get detailed information about the polygon glyphs.

Plotting Multiple Plots

There are several layouts provided by the Bokeh in order to create Multiple Plots. These layouts are:

  • Vertical Layout
  • Horizontal Layout
  • Grid Layout

Vertical Layouts

Vertical Layout set all the plots in the vertical fashion and can be created using the column() method.

Python3




from bokeh.io import output_file, show
from bokeh.layouts import column
from bokeh.plotting import figure
  
  
x = [1, 2, 3, 4, 5, 6]
y0 = x
y1 = [i * 2 for i in x]
y2 = [i ** 2 for i in x]
  
# create a new plot
s1 = figure(width=200, plot_height=200)
s1.circle(x, y0, size=10, alpha=0.5)
  
# create another one
s2 = figure(width=200, height=200)
s2.triangle(x, y1, size=10, alpha=0.5)
  
# create and another
s3 = figure(width=200, height=200)
s3.square(x, y2, size=10, alpha=0.5)
  
# put all the plots in a VBox
p = column(s1, s2, s3)
  
# show the results
show(p)


Output:

bokeh tutorial column

Horizontal Layout 

Horizontal Layout set all the plots in the horizontal fashion. It can be created using the row() method.

Example:

Python3




from bokeh.io import output_file, show
from bokeh.layouts import row
from bokeh.plotting import figure
  
  
x = [1, 2, 3, 4, 5, 6]
y0 = x
y1 = [i * 2 for i in x]
y2 = [i ** 2 for i in x]
  
# create a new plot
s1 = figure(width=200, plot_height=200)
s1.circle(x, y0, size=10, alpha=0.5)
  
# create another one
s2 = figure(width=200, height=200)
s2.triangle(x, y1, size=10, alpha=0.5)
  
# create and another
s3 = figure(width=200, height=200)
s3.square(x, y2, size=10, alpha=0.5)
  
# put all the plots in a VBox
p = row(s1, s2, s3)
  
# show the results
show(p)


Output:

Bokeh Tutorial roe

Grid Layout

gridplot() method can be used to arrange all the plots in the grid fashion. we can also pass None to leave a space empty for a plot.

Example:

Python3




from bokeh.io import output_file, show
from bokeh.layouts import gridplot
from bokeh.plotting import figure
  
  
x = [1, 2, 3, 4, 5, 6]
y0 = x
y1 = [i * 2 for i in x]
y2 = [i ** 2 for i in x]
  
# create a new plot
s1 = figure()
s1.circle(x, y0, size=10, alpha=0.5)
  
# create another one
s2 = figure()
s2.triangle(x, y1, size=10, alpha=0.5)
  
# create and another
s3 = figure()
s3.square(x, y2, size=10, alpha=0.5)
  
# put all the plots in a grid
p = gridplot([[s1, None], [s2, s3]], plot_width=200, plot_height=200)
  
# show the results
show(p)


Output:

Bokeh tutorial grid

Interactive Data Visualization

One of the key feature of Bokeh which differentiate it from other visualizing libraries is adding interaction to the Plot. Let’s see various interactions that can be added to the plot.

Configuring Plot Tools

In all the above graphs you must have noticed a toolbar that appears mostly at the right of the plot. Bokeh provides us the methods to handle these tools. Tools can be classified into four categories.

  • Gestures: These tools handle the gestures such as pan movement. There are three types of gestures:
    • Pan/Drag Tools
    • Click/Tap Tools
    • Scroll/Pinch Tools
  • Actions: These tools handle when a button is pressed.
  • Inspectors: These tools report information or annotate the graph such as  HoverTool.
  • Edit Tools: These are multi gestures tools that can add, delete glyphs from the graph.

Adjusting the Position of the ToolBar

We can specify the position of the toolbar according to our own needs. It can be done by passing the toolbar_location parameter to the figure() method. The possible value to this parameter is – 

  • “above”
  • “below”
  • “left”
  • “right”

Example: 

Python3




# importing the modules 
from bokeh.plotting import figure, output_file, show 
  
# instantiating the figure object 
graph = figure(title = "Bokeh ToolBar", toolbar_location="below"
  
# the points to be plotted 
x = [1, 2, 3, 4, 5
y = [1, 2, 3, 4, 5]  
  
# height / thickness of the plot
width = 0.5
  
# plotting the scatter graph 
graph.scatter(x, y) 
  
# displaying the model 
show(graph)


Output:

Bokeh Tutorial toolbar

Interactive Legends

In the section annotations and legends we have seen the list of all the parameters of the legends, however, we have not discussed the click_policy parameter yet. This property makes the legend interactive. There are two types of interactivity –

  • Hiding: Hides the Glyphs.
  • Muting: Hiding the glyph makes it vanish completely, on the other hand, muting the glyph just de-emphasizes the glyph based on the parameters.

Example 1: Hiding the legend

Python3




# importing the modules 
from bokeh.plotting import figure, output_file, show 
  
# file to save the model 
output_file("gfg.html"
          
# instantiating the figure object 
graph = figure(title = "Bokeh Hiding Glyphs"
  
# plotting the graph 
graph.vbar(x = 1, top = 5
        width = 1, color = "violet"
        legend_label = "Violet Bar"
graph.vbar(x = 2, top = 5
        width = 1, color = "green"
        legend_label = "Green Bar"
graph.vbar(x = 3, top = 5
        width = 1, color = "yellow"
        legend_label = "Yellow Bar"
graph.vbar(x = 4, top = 5
        width = 1, color = "red"
        legend_label = "Red Bar"
  
# enable hiding of the glyphs 
graph.legend.click_policy = "hide"
  
# displaying the model 
show(graph) 


Output:

bokeh tutorial hiding legend

Example 2: Muting the legend

Python3




# importing the modules 
from bokeh.plotting import figure, output_file, show 
  
# file to save the model 
output_file("gfg.html"
          
# instantiating the figure object 
graph = figure(title = "Bokeh Hiding Glyphs"
  
# plotting the graph 
graph.vbar(x = 1, top = 5
        width = 1, color = "violet"
        legend_label = "Violet Bar"
        muted_alpha=0.2
graph.vbar(x = 2, top = 5
        width = 1, color = "green"
        legend_label = "Green Bar"
        muted_alpha=0.2
graph.vbar(x = 3, top = 5
        width = 1, color = "yellow"
        legend_label = "Yellow Bar"
        muted_alpha=0.2
graph.vbar(x = 4, top = 5
        width = 1, color = "red"
        legend_label = "Red Bar"
        muted_alpha=0.2
  
# enable hiding of the glyphs 
graph.legend.click_policy = "mute"
  
# displaying the model 
show(graph) 


Output:

bokeh tutorial muting legend

Adding Widgets to the Plot

Bokeh provides GUI features similar to HTML forms like buttons, slider, checkbox, etc. These provide an interactive interface to the plot that allows to change the parameters of the plot, modifying plot data, etc. Let’s see how to use and add some commonly used widgets. 

  • Buttons: This widget adds a simple button widget to the plot. We have to pass a custom JavaScript function to the CustomJS() method of the models class.

Syntax:

Button(label, icon, callback)

Example:

Python3




from bokeh.io import show
from bokeh.models import Button, CustomJS
  
button = Button(label="GFG")
button.js_on_click(CustomJS(
  code="console.log('button: click!', this.toString())"))
  
show(button)


Output: 

bokeh tutorial button

  • CheckboxGroup: Adds a standard check box to the plot. Similarly to buttons we have to pass the custom JavaScript function to the CustomJS() method of the models class.

Example:

Python3




from bokeh.io import show
from bokeh.models import CheckboxGroup, CustomJS
  
L = ["First", "Second", "Third"]
  
# the active parameter sets checks the selected value 
# by default
checkbox_group = CheckboxGroup(labels=L, active=[0, 2])
  
checkbox_group.js_on_click(CustomJS(code="""
    console.log('checkbox_group: active=' + this.active, this.toString())
"""))
  
show(checkbox_group)


Output:

Bokeh tutorial check box

  • RadioGroup: Adds a simple radio button and accepts a custom JavaScript function.

Syntax:

RadioGroup(labels, active)

Example:

Python3




from bokeh.io import show
from bokeh.models import RadioGroup, CustomJS
  
L = ["First", "Second", "Third"]
  
# the active parameter sets checks the selected value 
# by default
radio_group = RadioGroup(labels=L, active=1)
  
radio_group.js_on_click(CustomJS(code="""
    console.log('radio_group: active=' + this.active, this.toString())
"""))
  
show(radio_group)


Output:

Bokeh Tutorial radio button

  • Sliders: Adds a slider to the plot. It also needs a custom JavaScript function.

Syntax:

Slider(start, end, step, value)

Example:

Python3




from bokeh.io import show
from bokeh.models import CustomJS, Slider
  
slider = Slider(start=1, end=20, value=1, step=2, title="Slider")
  
slider.js_on_change("value", CustomJS(code="""
    console.log('slider: value=' + this.value, this.toString())
"""))
  
show(slider)


Output:

bokeh tutorial slider

  • DropDown: Adds a dropdown to the plot and like every other widget it also needs a custom JavaScript function as callback.

Example:

Python3




from bokeh.io import show
from bokeh.models import CustomJS, Dropdown
  
menu = [("First", "First"), ("Second", "Second"), ("Third", "Third")]
  
dropdown = Dropdown(label="Dropdown Menu", button_type="success", menu=menu)
  
dropdown.js_on_event("menu_item_click", CustomJS(
    code="console.log('dropdown: ' + this.item, this.toString())"))
  
show(dropdown)


Output:

bokeh tutorial dropdown

  • Tab Widget: Tab Widget adds tabs and each tab show a different plot.

Example:

Python3




from bokeh.plotting import figure, output_file, show
from bokeh.models import Panel, Tabs
import numpy as np
import math
  
  
fig1 = figure(plot_width=300, plot_height=300)
  
x = [1, 2, 3, 4, 5]
y = [5, 4, 3, 2, 1]
  
fig1.line(x, y, line_color='green')
tab1 = Panel(child=fig1, title="Tab 1")
  
fig2 = figure(plot_width=300, plot_height=300)
  
fig2.line(y, x, line_color='red')
tab2 = Panel(child=fig2, title="Tab 2")
  
all_tabs = Tabs(tabs=[tab1, tab2])
  
show(all_tabs)


Output:

bokeh tutorial tabs

Creating Different Types of Glyphs

Visualizing Different Types of Data

More Topics on Bokeh



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Interactive Data Visualization with Python and Bokeh
In this article, we'll learn how to do Interactive Data Visualization with Bokeh. Bokeh is a Python library that is used for creating interactive visualizations for modern web browsers. It handles custom or specialized use cases very simply. It provides high-performance interactive charts and plots. Bokeh output can be obtained in various mediums l
8 min read
Interactive visualization of data using Bokeh
Bokeh is a Python library for creating interactive data visualizations in a web browser. It offers human-readable and fast presentation of data in an visually pleasing manner. If you’ve worked with visualization in Python before, it’s likely that you have used matplotlib. But Bokeh differs from matplotlib. To install Bokeh type the below command in
4 min read
Using Plotly for Interactive Data Visualization in Python
Plotly is an open-source module of Python which is used for data visualization and supports various graphs like line charts, scatter plots, bar charts, histograms, area plot, etc. In this article, we will see how to plot a basic chart with plotly and also how to make a plot interactive. But before starting you might be wondering why there is a need
13 min read
Interactive Data Visualization with Plotly Express in R
Data Visualization in R is the process of representing data so that it is easy to understand and interpret. Various packages are present in the R Programming Language for data visualization. Plotly's R graphing library makes interactive, publication-quality graphs. Plotly can be used to make various interactive graphs such as scatter, line, bar, hi
7 min read
What is Interactive Data Visualization?
Organizations are always looking for innovative methods to effectively share insights and get value from their data in today's data-rich environment. With dynamic and engaging images, users may explore and comprehend data thanks to the potent interactive data visualization technology. The article aims to discuss the importance, benefits, and techni
9 min read
Python - Data visualization using Bokeh
Bokeh is a data visualization library in Python that provides high-performance interactive charts and plots. Bokeh output can be obtained in various mediums like notebook, html and server. It is possible to embed bokeh plots in Django and flask apps. Bokeh provides two visualization interfaces to users: bokeh.models : A low level interface that pro
3 min read
Python Bokeh - Making Interactive Legends
Bokeh is a Python interactive data visualization. It renders its plots using HTML and JavaScript. It targets modern web browsers for presentation providing elegant, concise construction of novel graphics with high-performance interactivity. How to make Interactive legends? The legend of a graph reflects the data displayed in the graph's Y-axis. In
2 min read
Add Interactive Slider to Bokeh Plots
Bokeh is an interactive Data visualization library of Python. It can be used to create interactive plots, dashboards, and data applications. Widgets are nothing but additional visual elements that you can add to your plots to interactively control your Bokeh document. There are various types of widgets such as button, div, spinner, slider, etc. In
2 min read
Interactive maps with Bokeh
Interactive maps are used to visualize the data based on the geo-location category. any large dataset which contains a lot of geo-location data like cities, states, countries, etc can be plotted easily. bokeh is an open-source package, which uses the Bokeh visualization tool. It gives a flexible declarative interface for dynamic web-based visualiza
4 min read
Why Data Visualization Matters in Data Analytics?
What if you wanted to know the number of movies produced in the world per year in different countries? You could always read this data in the form of a black and white text written on multiple pages. Or you could have a colorful bar chart that would immediately tell you which countries are producing more movies and if the total movies per year are
7 min read