pandas 向散景图添加标签
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Adding labels to a Bokeh plot
提问by jhaywoo8
I have a data frame with columns with player names and their stats. I've plotting two different stats would like the player names to appear under each dot on the scatterplot.
我有一个包含玩家姓名及其统计数据列的数据框。我绘制了两个不同的统计数据，希望玩家姓名出现在散点图上的每个点下方。
This is what I have so far but it's not working. For text, I assume this is the list of names I want under each point on the plot and source is where the names are coming from.
这是我到目前为止所拥有的，但它不起作用。对于文本，我假设这是我想要的图上每个点下的名称列表，源是名称的来源。
p = Scatter(dt,x='off_rating',y='def_rating',title="Offensive vs. Defensive Eff",color="navy")
labels = LabelSet(x='off_rating',y='def_rating',text="player_name",source=dt)
p.add_layout(labels)
回答by Oluwafemi Sule
You're on the right path. However, the sourcefor LabelSethas to be a DataSource. Here is an example code.
你走在正确的道路上。但是，sourceforLabelSet必须是数据源。这是一个示例代码。
from bokeh.plotting import show, ColumnDataSource
from bokeh.charts import Scatter
from bokeh.models import LabelSet
from pandas.core.frame import DataFrame
source = DataFrame(
dict(
off_rating=[66, 71, 72, 68, 58, 62],
def_rating=[165, 189, 220, 141, 260, 174],
names=['Mark', 'Amir', 'Matt', 'Greg', 'Owen', 'Juan']
)
)
scatter_plot = Scatter(
source,
x='off_rating',
y='def_rating',
title='Offensive vs. Defensive Eff',
color='navy')
labels = LabelSet(
x='off_rating',
y='def_rating',
text='names',
level='glyph',
x_offset=5,
y_offset=5,
source=ColumnDataSource(source),
render_mode='canvas')
scatter_plot.add_layout(labels)
show(scatter_plot)
