我想在悬停到特定数据点时显示图表的数据点(x 值、y 值)。
有谁知道如何根据我当前的代码实现它?
ax = df.plot(x=1, y=2) #x value from column 1 of pandas dataframe,
#y value from column 2 of pandas dataframe
答案 0 :(得分:0)
以下是如何使用 bokeh
实现此目的的示例:
import matplotlib.pyplot as plt
import numpy as np; np.random.seed(1)
from bokeh.plotting import figure, show
from bokeh.io import output_notebook
from bokeh.models import HoverTool
from collections import OrderedDict
x = np.sort(np.random.rand(15))
y = np.sort(np.random.rand(15))
names = np.array(list("ABCDEFGHIJKLMNO"))
p = figure(plot_width=1000, plot_height=600,
tools="pan,hover",
title="Changes",
x_axis_label='height',
y_axis_label='Weight',
toolbar_location="left"
)
hover = p.select(dict(type=HoverTool))
hover.tooltips = OrderedDict([('height', '@x'), ('Weight', '$y')])
output_notebook()
p.line(x, y, legend="Weight")
p.line(x, y, legend="Height", line_color="red")
show(p)
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