如何让 y 轴与 Bokeh 和 Hovertool 交互？答案

【问题标题】：How to get y-axis to interact with Bokeh and Hovertool?如何让 y 轴与 Bokeh 和 Hovertool 交互？
【发布时间】：2018-04-05 17:57:39
【问题描述】：

我试图让我的 HoverTool 显示 y 轴上的条形值。它显示？？？相反，这很奇怪。此外，如果有人知道如何，有没有办法让 y 轴与 e 不采用科学计数法？

这是代码：

#RQ Do people who are scared about a loss of privacy own less devices than those who are not?
output_notebook()

categories = ['The Loss of Privacy', "We'll all lose touch with one another", "We'll all be less safe", "I have no fears about a more connected future", "Other"]

#Interactivity
hover = HoverTool(tooltips=[
    ("Biggest Fear", "@x"),
    ("Number of Devices Owned", "@y"),
])

p = figure(x_range = categories, plot_height = 250, plot_width = 1000, title = "Total Devices Owned", tools = [hover])
p.vbar(x = categories, top = [268252,133344,86014,44688,47270], width = 0.5)

p.xgrid.grid_line_color = None
p.y_range.start = 0
p.y_range.end = 300000

p.xaxis.axis_label = "What is your biggest fear as we move towards a more connected future?"
p.yaxis.axis_label = "Amount of Devices Owned"

show(p)

还有图表：

【问题讨论】：

标签： python graph bokeh interactive

【解决方案1】：

您需要对代码进行两次更改。首先，要在 HoverTool 上显示值，请将“@y”替换为“@top”。二、在“figure”行后面加上这一行，得到科学计数法：p.left[0].formatter.use_scientific = False

#RQ Do people who are scared about a loss of privacy own less devices than those who are not?
output_notebook()

categories = ['The Loss of Privacy', "We'll all lose touch with one another", "We'll all be less safe", "I have no fears about a more connected future", "Other"]

#Interactivity
hover = HoverTool(tooltips=[
    ("Biggest Fear", "@x"),
    ("Number of Devices Owned", "@top"),
])

p = figure(x_range = categories, plot_height = 250, plot_width = 1000, title = "Total Devices Owned", tools = [hover])
p.left[0].formatter.use_scientific = False ## This line is to get out scientific notation
p.vbar(x = categories, top = [268252,133344,86014,44688,47270], width = 0.5)

p.xgrid.grid_line_color = None
p.y_range.start = 0
p.y_range.end = 300000

p.xaxis.axis_label = "What is your biggest fear as we move towards a more connected future?"
p.yaxis.axis_label = "Amount of Devices Owned"

show(p)

【讨论】：