我可能在这里忽略了显而易见的事,但我对Bokeh有一种非常奇怪的行为。
我们说我有以下Pandas数据帧:
import pandas as pd
test = pd.DataFrame({'date': [pd.Timestamp('2014-11-24 17:18:28'),
pd.Timestamp('2014-11-24 17:18:38'),
pd.Timestamp('2014-11-24 17:18:48'),
pd.Timestamp('2014-11-24 17:19:21'),
pd.Timestamp('2014-11-24 17:19:41'),
pd.Timestamp('2014-11-24 17:19:49'),
pd.Timestamp('2014-11-24 17:19:59'),
pd.Timestamp('2014-11-24 17:25:43'),
pd.Timestamp('2014-11-24 17:25:53'),
pd.Timestamp('2014-11-24 17:25:58'),
pd.Timestamp('2014-11-24 17:26:08'),
pd.Timestamp('2014-11-24 17:26:18'),
pd.Timestamp('2014-11-24 17:26:28'),
pd.Timestamp('2014-11-24 17:26:31'),
pd.Timestamp('2014-11-24 17:26:39'),
pd.Timestamp('2014-11-24 17:26:43'),
pd.Timestamp('2014-11-24 17:26:53'),
pd.Timestamp('2014-11-24 17:27:01'),
pd.Timestamp('2014-11-24 17:27:06'),
pd.Timestamp('2014-11-24 17:27:09')],
'activity': ['occupied', 'occupied', 'sleep',
'sleep', 'sleep', 'occupied',
'sleep', 'occupied', 'occupied',
'sleep', 'sleep', 'occupied',
'occupied', 'sleep', 'occupied',
'occupied', 'occupied', 'occupied',
'occupied', 'occupied'],
'since': [pd.Timestamp('2014-11-24 17:18:28'),
pd.Timestamp('2014-11-24 17:18:38'),
pd.Timestamp('2014-11-24 17:18:48'),
pd.Timestamp('2014-11-24 17:18:58'),
pd.Timestamp('2014-11-24 17:18:58'),
pd.Timestamp('2014-11-24 17:19:49'),
pd.Timestamp('2014-11-24 17:19:59'),
pd.Timestamp('2014-11-24 17:20:06'),
pd.Timestamp('2014-11-24 17:20:06'),
pd.Timestamp('2014-11-24 17:25:58'),
pd.Timestamp('2014-11-24 17:26:08'),
pd.Timestamp('2014-11-24 17:26:18'),
pd.Timestamp('2014-11-24 17:26:28'),
pd.Timestamp('2014-11-24 17:26:31'),
pd.Timestamp('2014-11-24 17:26:39'),
pd.Timestamp('2014-11-24 17:26:39'),
pd.Timestamp('2014-11-24 17:26:39'),
pd.Timestamp('2014-11-24 17:26:39'),
pd.Timestamp('2014-11-24 17:26:39'),
pd.Timestamp('2014-11-24 17:26:39')]})
test.set_index('date', inplace=True)
现在我尝试从中绘制片段:
from bokeh.plotting import figure, show
p = figure(width=1500, height=400,
title="Test",
x_axis_label="Date", x_axis_type="datetime",
y_axis_label="Activities", y_range=list(test.activity.unique()),
tools="box_select,xpan,xwheel_zoom,reset,save")
p.segment(x0=test.since, y0=test.activity,
x1=test.index.get_level_values('date'), y1=test.activity)
show(p)
我得到了下图:
现在,如果我在显示图形之前添加圆形图,它就会起作用。
# p.segment...
p.circle(x=test.since,
y=test.activity)
show(p)
答案 0 :(得分:1)
我认为您遗失的是x_range
实例化中的figure
关键字参数:
from bokeh.plotting import figure, show
p = figure(width=1000, height=400,
title="Test",
x_axis_label="Date", x_axis_type="datetime",
--> x_range=(test.index.min(), test.index.max()),
y_axis_label="Activities", y_range=list(test.activity.unique()),
tools="box_select,xpan,xwheel_zoom,reset,save")
p.segment(x0=test.since, y0=test.activity,
x1=test.index, y1=test.activity)
show(p)
所以这应该适合你,而不必在情节中添加圆形字形。
尽管如此,我仍然不知道为什么在添加x_range
字形时它需要segment()
kwarg,而不是圆形字形。