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[雪峰磁针石博客]Bokeh数据可视化工具5视觉增强

[雪峰磁针石博客]Bokeh数据可视化工具5视觉增强

作者: oychw | 来源:发表于2018-08-07 04:45 被阅读37次

    注释用于向绘图添加补充信息，例如标题，图例和彩色地图等。
    Widget通过按钮，下拉菜单，滑块和提供交互性支持。
    视觉属性为绘图提供了广泛的视觉增强，例如线条和文字的颜色和填充，以及诸如的交互增强
    将鼠标悬停在工具上并选择兴趣点。

    添加标题(title)

    #Setting up the data for chapter 
#Import the required packages
import pandas as pd
from bokeh.sampledata.stocks import AAPL

df_apple = pd.DataFrame(AAPL)
df_apple['date'] = pd.to_datetime(df_apple['date'])

#Import the required packages
from bokeh.io import output_file, show
from bokeh.plotting import figure
from bokeh.plotting import ColumnDataSource

#Create the ColumnDataSource object
data = ColumnDataSource(data = {
    'x' : df_apple['high'],
    'y' : df_apple['low'],
    'x1': df_apple['open'],
    'y1': df_apple['close'],
    'x2': df_apple['date'],
    'y2': df_apple['volume'],   
})

#Adding titles to plots
#Import the required packages
from bokeh.plotting import figure, show, output_file

#Create the plot with the title
plot3 = figure(title = "5 year time series distribution of volumn of Apple stocks traded", title_location = "above", 
               x_axis_type = 'datetime', x_axis_label = 'date', y_axis_label = 'Volume Traded')

#Create the time series plot
plot3.line(x = 'x2', y = 'y2', source = data, color = 'red')
plot3.circle(x = 'x2', y = 'y2', source = data, fill_color = 'white', size = 3)

#Output the plot
output_file('title.html')
show(plot3)
    image.png

    添加图例(legend)

    #Setting up the data for chapter 
#Import the required packages
import pandas as pd
from bokeh.sampledata.stocks import AAPL

df_apple = pd.DataFrame(AAPL)
df_apple['date'] = pd.to_datetime(df_apple['date'])

#Import the required packages
from bokeh.io import output_file, show
from bokeh.plotting import figure
from bokeh.plotting import ColumnDataSource

#Create the ColumnDataSource object
data = ColumnDataSource(data = {
    'x' : df_apple['high'],
    'y' : df_apple['low'],
    'x1': df_apple['open'],
    'y1': df_apple['close'],
    'x2': df_apple['date'],
    'y2': df_apple['volume'],   
})

#Adding legends to plots
#Import the required packages
from bokeh.plotting import figure, show, output_file

#Create the two scatter plots
plot = figure()

#Create the legends
plot.cross(x = 'x', y = 'y', source = data, color = 'red', size = 10, alpha = 0.8, legend = "High Vs. Low")
plot.circle(x = 'x1', y = 'y1', source = data, color = 'green', size = 10, alpha = 0.3, legend = "Open Vs. Close")

#Output the plot
output_file('5.html')
show(plot)
    image.png

    颜色映射

    #Setting up the data for chapter 
import pandas as pd

#Read in the data
df = pd.read_csv('/home/andrew/code/kaggle-code/stock_data/all_stocks_5yr.csv')

df_multiple = df[(df['Name'] == 'GOOGL') | (df['Name'] == 'USB')]

#Import the required packages
from bokeh.models import CategoricalColorMapper
from bokeh.io import output_file, show
from bokeh.plotting import figure
from bokeh.plotting import ColumnDataSource

#Store the data in the ColumnDataSource object
data = ColumnDataSource(df_multiple)

#Create the mapper 
category_map = CategoricalColorMapper(
    factors = ['GOOGL', 'USB'], palette = ['blue', 'red'])

#Plot the figure
plot = figure()
plot.circle('high', 'low', size = 8, source = data, color = {'field': 'Name', 'transform': category_map})

#Output the plot
output_file('category.html')
show(plot)
    image.png

    创建按钮(button)

    from bokeh.io import output_file, show
from bokeh.layouts import widgetbox
from bokeh.models.widgets import Button

#Create the button
button = Button(label="Click me", button_type = "success")

#Output the button
output_file("button.html")
show(widgetbox(button))
    image.png

    复选框(checkbox)

    from bokeh.io import output_file, show
from bokeh.layouts import widgetbox
from bokeh.models.widgets import CheckboxGroup

#Create the checkbox
checkbox = CheckboxGroup(
        labels=["box: 1", "box: 2", "box: 3"], active=[1, 2])

#Output the checkbox
output_file("checkbox.html")
show(widgetbox(checkbox))
    image.png

    下拉菜单(Dropdown)

    from bokeh.io import output_file, show
from bokeh.layouts import widgetbox
from bokeh.models.widgets import Dropdown

#Create the menu
menu = [("Option 1", "item_1"), ("Option 2", "item_2")]

#Create the Dropdown
dropdown = Dropdown(label="Dropdown Menu", button_type="warning", menu=menu)

#Output the dropdown menu
output_file("dropdown.html")
show(widgetbox(dropdown))
    image.png

    单选按钮(radio)

    from bokeh.io import output_file, show
from bokeh.layouts import widgetbox
from bokeh.models.widgets import RadioGroup

#Create the radio button 
radio_button = RadioGroup(
        labels=["Option 1", "Option 2"], active=0)

#Output the radio button widget
output_file("radiobutton.html")
show(widgetbox(radio_button))
    image.png

    滑动条(slider)

    from bokeh.io import output_file, show
from bokeh.layouts import widgetbox
from bokeh.models.widgets import Slider

#Create the slider widget
slider = Slider(start=0, end=50, value=0, step= 5, title="Simple Slider")

#Output the slider
output_file("slider.html")
show(widgetbox(slider))
    image.png

    文本输入

    from bokeh.io import output_file, show
from bokeh.layouts import widgetbox
from bokeh.models.widgets import TextInput

#Create the text input widget
text_widget = TextInput(value="", title="Type your text here")

#Output the text input widget
output_file("text_input.html")
show(widgetbox(text_widget))
    image.png

    悬停提示

    from bokeh.models import CategoricalColorMapper
from bokeh.models import HoverTool
from bokeh.io import output_file, show
from bokeh.plotting import ColumnDataSource
from bokeh.plotting import figure
import pandas as pd

#Read in the data and filter for Google and USB stocks
import pandas as pd

#Read in the data
df = pd.read_csv('/home/andrew/code/kaggle-code/stock_data/all_stocks_5yr.csv')
df_multiple = df[(df['Name'] == 'GOOGL') | (df['Name'] == 'USB')]

#Create the hover tooltip
hover_tool = HoverTool(tooltips = [
    ('Stock Ticker', '@Name'),
    ('High Price', '@high'),
    ('Low Price', '@low')
]) 

#Save the data in a ColumnDataSource object
data = ColumnDataSource(df_multiple)

#Create the categorical color mapper
category_map = CategoricalColorMapper(
    factors = ['GOOGL', 'USB'], palette = ['blue', 'red'])

#Create the plot with the hover tooltip
plot = figure(tools = [hover_tool])
plot.circle('high', 'low', size = 8, source = data, color = {'field': 'Name', 'transform': category_map})

#Output the plot
output_file('hover.html')
show(plot)
    image.png

    选择

    from bokeh.models import CategoricalColorMapper
from bokeh.models import HoverTool
from bokeh.io import output_file, show
from bokeh.plotting import ColumnDataSource
from bokeh.plotting import figure
import pandas as pd

#Read in the data and filter for Google and USB stocks
import pandas as pd

#Read in the data
df = pd.read_csv('/home/andrew/code/kaggle-code/stock_data/all_stocks_5yr.csv')
df_multiple = df[(df['Name'] == 'GOOGL') | (df['Name'] == 'USB')]

#Save the data in a ColumnDataSource object
data = ColumnDataSource(df_multiple)

category_map = CategoricalColorMapper(
    factors = ['GOOGL', 'USB'], palette = ['blue', 'red'])

#Create the plot with the selection tool 

plot = figure(tools = 'box_select')

plot.circle('high', 'low', size = 8, source = data, 
            color = {'field': 'Name', 'transform': category_map}, selection_color = 'green',
           nonselection_fill_alpha = 0.3, nonselection_fill_color = 'grey')

#Output the plot
output_file('selection.html')
show(plot)
    image.png

    标题样式

    from bokeh.models import CategoricalColorMapper
from bokeh.models import HoverTool
from bokeh.io import output_file, show
from bokeh.plotting import ColumnDataSource
from bokeh.plotting import figure
import pandas as pd

#Read in the data and filter for Google and USB stocks
import pandas as pd

#Read in the data
df = pd.read_csv('/home/andrew/code/kaggle-code/stock_data/all_stocks_5yr.csv')
df_multiple = df[(df['Name'] == 'GOOGL') | (df['Name'] == 'USB')]

#Save the data in a ColumnDataSource object
data = ColumnDataSource(df_multiple)

category_map = CategoricalColorMapper(
    factors = ['GOOGL', 'USB'], palette = ['blue', 'red'])

plot = figure(title = "High Vs. Low Prices (Google & USB)")
plot.title.text_color = "red"
plot.title.text_font = "times"
plot.title.text_font_style = "bold"
plot.circle('high', 'low', size = 8, source = data, 
            color = {'field': 'Name', 'transform': category_map})

#Output the plot
output_file('title.html')
show(plot)
    image.png

    轮廓样式

    from bokeh.models import CategoricalColorMapper
from bokeh.models import HoverTool
from bokeh.io import output_file, show
from bokeh.plotting import ColumnDataSource
from bokeh.plotting import figure
import pandas as pd

#Read in the data and filter for Google and USB stocks
import pandas as pd

#Read in the data
df = pd.read_csv('/home/andrew/code/kaggle-code/stock_data/all_stocks_5yr.csv')
df_multiple = df[(df['Name'] == 'GOOGL') | (df['Name'] == 'USB')]

#Save the data in a ColumnDataSource object
data = ColumnDataSource(df_multiple)

category_map = CategoricalColorMapper(
    factors = ['GOOGL', 'USB'], palette = ['blue', 'red'])

plot = figure(title = "High Vs. Low Prices (Google & USB)")
#Configure the outline of the plot
plot.outline_line_width = 8
plot.outline_line_alpha = 0.8
plot.outline_line_color = "black"

#Create and output the plot
plot.circle('high', 'low', size = 8, source = data, 
            color = {'field': 'Name', 'transform': category_map})

output_file('outline.html')
show(plot)
    image.png

    标签样式

    from bokeh.models import CategoricalColorMapper
from bokeh.models import HoverTool
from bokeh.io import output_file, show
from bokeh.plotting import ColumnDataSource
from bokeh.plotting import figure
import pandas as pd

#Read in the data and filter for Google and USB stocks
import pandas as pd

#Read in the data
df = pd.read_csv('/home/andrew/code/kaggle-code/stock_data/all_stocks_5yr.csv')
df_multiple = df[(df['Name'] == 'GOOGL') | (df['Name'] == 'USB')]

#Save the data in a ColumnDataSource object
data = ColumnDataSource(df_multiple)

category_map = CategoricalColorMapper(
    factors = ['GOOGL', 'USB'], palette = ['blue', 'red'])

plot = figure(title = "High Vs. Low Prices (Google & USB)")

plot.xaxis.axis_label = "High Prices"
plot.xaxis.axis_label_text_color = "green"
plot.yaxis.axis_label = "Low Prices"
plot.yaxis.axis_label_text_font_style = "bold"

plot.circle('high', 'low', size = 8, source = data, 
            color = {'field': 'Name', 'transform': category_map})

#Output the plot
output_file('label.html')
show(plot)

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