pandas 散景悬停工具提示未显示所有数据 - Ipython notebook
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/31226119/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Bokeh hover tooltip not displaying all data - Ipython notebook
提问by Luis Miguel
I am experimenting with Bokeh and mixing pieces of code. I created the graph below from a Pandas DataFrame, which displays the graph correctly with all the tool elements I want. However, the tooltip is partially displaying the data.
我正在试验 Bokeh 和混合代码片段。我从 Pandas DataFrame 创建了下面的图形，它正确显示了包含我想要的所有工具元素的图形。但是，工具提示部分显示了数据。
Here is the graph:
这是图表：
Here is my code:
这是我的代码：
from bokeh.plotting import figure, show
from bokeh.io import output_notebook
from bokeh.models import HoverTool
from collections import OrderedDict
x = yearly_DF.index
y0 = yearly_DF.weight.values
y1 = yearly_DF.muscle_weight.values
y2 = yearly_DF.bodyfat_p.values
#output_notebook()
p = figure(plot_width=1000, plot_height=600,
tools="pan,box_zoom,reset,resize,save,crosshair,hover",
title="Annual Weight Change",
x_axis_label='Year',
y_axis_label='Weight',
toolbar_location="left"
)
hover = p.select(dict(type=HoverTool))
hover.tooltips = OrderedDict([('Year', '@x'),('Total Weight', '@y0'), ('Muscle Mass', '$y1'), ('BodyFat','$y2')])
output_notebook()
p.line(x, y0, legend="Weight")
p.line(x, y1, legend="Muscle Mass", line_color="red")
show(p)
I have tested with Firefox 39.0, Chrome 43.0.2357.130 (64-bit) and Safari Version 8.0.7. I have cleared the cache and I get the same error in all browsers. Also I did pip install bokeh --upgrade to make sure I have the latest version running.
我已经使用 Firefox 39.0、Chrome 43.0.2357.130（64 位）和 Safari 版本 8.0.7 进行了测试。我已清除缓存，但在所有浏览器中都出现相同的错误。我也做了 pip install bokeh --upgrade 以确保我运行的是最新版本。
回答by colinfang
Try using ColumnDataSource.
尝试使用ColumnDataSource.
Hover tool needs to have access to the data source so that it can display info.
@x, @yare the x-y values in data unit. (@prefix is special, can only followed by a limited set of variable, @y2is not one of them)., Normally I would use $+ column_name to display the value of my interest, such as $weight. See herefor more info.
悬停工具需要访问数据源才能显示信息。
@x,@y是数据单元中的 xy 值。（@前缀比较特殊，后面只能跟有限的一组变量，@y2不是其中之一），一般我会用$+ column_name来显示我感兴趣的值，比如$weight. 请参阅此处了解更多信息。
Besides, I am surprised that the hover would appear at all. As I thought hoverTool doesn't work with line glyph, as noted here
此外，我很惊讶会出现悬停。因为我认为hoverTool不与线雕文工作，因为注意到这里
Try the following : (I haven't tested, might have typos).
请尝试以下操作：（我还没有测试过，可能有错别字）。
df = yearly_DF.reset_index() # move index to column.
source = ColumnDataSource(ColumnDataSource.from_df(df)
hover.tooltips = OrderedDict([('x', '@x'),('y', '@y'), ('year', '$index'), ('weight','$weight'), ('muscle_weight','$muscle_weight'), ('body_fat','$bodyfat_p')])
p.line(x='index', y='weight', source=source, legend="Weight")
p.line(x='index', y='muscle_weight', source=source, legend="Muscle Mass", line_color="red")
回答by bigreddot
Are you using Firefox? This was a reported issue with some older versions of FF:
你在用火狐吗？这是一些旧版本 FF 的报告问题：
https://github.com/bokeh/bokeh/issues/1981
https://github.com/bokeh/bokeh/issues/1981
https://github.com/bokeh/bokeh/issues/2122
https://github.com/bokeh/bokeh/issues/2122
Upgrading FF resolved the issue.
升级FF解决了这个问题。
