python - 痕迹未显现

Question

plotly版本4.2.1，python 3.7.3

尝试用下面的简单示例来探索绘图，但绘图显示没有痕迹。(我注意到两个轴限制不会随着不同的数据范围而改变)

import numpy as np
import plotly.graph_objs as go

x = np.arange(10)    #np.linspace(0,1,100)
y = x**2             #np.random.randn(100)


fig = go.Figure()
fig.add_trace = [go.Scatter(x=x, y=y+5,
               mode='markers',  name = 'marker',)]
fig.add_trace = [go.Scatter(x=x, y=y,
               mode='lines',  name = 'mylines')]

fig.update_layout(title='line charts',)
fig.show()

Answer 1

fig.add_trace() 不是可以为其赋值的变量。这是一个可以将 go.Scatter() 作为参数的函数。

更正的代码:

import numpy as np
import plotly.graph_objs as go

x = np.arange(10)    #np.linspace(0,1,100)
y = x**2             #np.random.randn(100)


fig = go.Figure()
fig.add_trace(go.Scatter(x=x, y=y+5,
               mode='markers',  name = 'marker'))

fig.add_trace(go.Scatter(x=x, y=y,
               mode='lines',  name = 'mylines'))

fig.update_layout(title='line charts',)
fig.show()

plotly :