python - 使用自定义绘图标题时，“plotly.subplots”中的注释会中断

Question

我有一个奇怪的问题 - 不确定这是一个错误还是我遗漏了一些东西。

• 在绘制子图Code 1并为每个子图分配自定义标题时 - 我稍后尝试添加到底部图的注释未完全显示，而仅显示最后两个 ( Output Plot 1)。

代码 1：

import numpy as np
from plotly.subplots import make_subplots
from math import exp

fig = make_subplots(2, 1, subplot_titles=['Activation', 'Prediction errors - Model, ALO and RND'])

x = np.linspace(0, 10, 100)
y = np.array(list(map(lambda x: 1 / (1 + exp(-0.1 * x + 5)), x)))
fig.add_trace(
    go.Scatter(
        x=x,
        y=y,
        name=f'\N{Greek Small Letter Sigma}(x)',
        showlegend=True
    ),
    row=1,
    col=1
)
fig['layout']['xaxis'].update(title_text='x')

for i in range(4):
    x = np.where(np.random.randint(0, 2, 100)==1)[0]
    fig.add_trace(
        go.Scatter(
            x=x,
            y=np.zeros_like(x) + i,
            name=f'Plot {i}',
            mode='markers', 
            marker=dict(
                    symbol='circle-open',
                    color='green',
                    size=5
                ),
            showlegend=True
        ),
        row=2,
        col=1
    )
fig['layout']['xaxis2'].update(title_text='active users', range=[0, 10], autorange=True)
fig['layout']['yaxis2'].update(title_text='active users', visible=False, autorange=True)
fig['layout'].update(
    annotations=[
    dict(x=0, y=0.125, xref='x2', yref='y2', text='True activity', font=dict(size=10, color='green')),
    dict(x=0, y=1.125, xref='x2', yref='y2', text='Model', font=dict(size=10, color='blue')),
    dict(x=0, y=2.125, xref='x2', yref='y2', text='ALO', font=dict(size=10, color='red')),
    dict(x=0, y=3.125, xref='x2', yref='y2', text='RND', font=dict(size=10, color='black')),
    ]
)
fig.show()

输出图 1

另一方面，如果我删除自定义绘图标签 - 一切都按预期工作，如Code 2和 output所示Image 2。

代码 2：

import numpy as np
from plotly.subplots import make_subplots
from math import exp

fig = make_subplots(2, 1)#, subplot_titles=['Activation', 'Prediction errors - Model, ALO and RND']) # <= note the change here

x = np.linspace(0, 10, 100)
y = np.array(list(map(lambda x: 1 / (1 + exp(-0.1 * x + 5)), x)))
fig.add_trace(
    go.Scatter(
        x=x,
        y=y,
        name=f'\N{Greek Small Letter Sigma}(x)',
        showlegend=True
    ),
    row=1,
    col=1
)
fig['layout']['xaxis'].update(title_text='x')

for i in range(4):
    x = np.where(np.random.randint(0, 2, 100)==1)[0]
    fig.add_trace(
        go.Scatter(
            x=x,
            y=np.zeros_like(x) + i,
            name=f'Plot {i}',
            mode='markers', 
            marker=dict(
                    symbol='circle-open',
                    color='green',
                    size=5
                ),
            showlegend=True
        ),
        row=2,
        col=1
    )
fig['layout']['xaxis2'].update(title_text='active users', range=[0, 10], autorange=True)
fig['layout']['yaxis2'].update(title_text='active users', visible=False, autorange=True)
fig['layout'].update(
    annotations=[
    dict(x=0, y=0.125, xref='x2', yref='y2', text='True activity', font=dict(size=10, color='green')),
    dict(x=0, y=1.125, xref='x2', yref='y2', text='Model', font=dict(size=10, color='blue')),
    dict(x=0, y=2.125, xref='x2', yref='y2', text='ALO', font=dict(size=10, color='red')),
    dict(x=0, y=3.125, xref='x2', yref='y2', text='RND', font=dict(size=10, color='black')),
    ]
)
fig.show()

输出图 2

提前感谢您对此行为的任何详细说明。

标签： pythonplotlyplotly-python

Answer 1

我不确定这是否是由于字幕的设置，但add_annotation()是否正确，update(annotations=[]可能已被函数覆盖以更新已设置的注释。

import plotly.graph_objects as go
import numpy as np
from plotly.subplots import make_subplots
from math import exp

fig = make_subplots(2, 1, subplot_titles=('Activation', 'Prediction errors - Model, ALO and RND'))

x = np.linspace(0, 10, 100)
y = np.array(list(map(lambda x: 1 / (1 + exp(-0.1 * x + 5)), x)))
fig.add_trace(
    go.Scatter(
        x=x,
        y=y,
        name=f'\N{Greek Small Letter Sigma}(x)',
        showlegend=True
    ),
    row=1,
    col=1
)
fig['layout']['xaxis'].update(title_text='x')

for i in range(4):
    x = np.where(np.random.randint(0, 2, 100)==1)[0]
    fig.add_trace(
        go.Scatter(
            x=x,
            y=np.zeros_like(x) + i,
            name=f'Plot {i}',
            mode='markers', 
            marker=dict(
                    symbol='circle-open',
                    color='green',
                    size=5
                ),
            showlegend=True
        ),
        row=2,
        col=1
    )
fig['layout']['xaxis2'].update(title_text='active users', autorange=True)
fig['layout']['yaxis2'].update(title_text='active users', visible=True, range=[-1,4])

fig.add_annotation(
    dict(x=0, y=3.125, xref='x2', yref='y2', text='RND', showarrow=True, font=dict(size=10, color='black'))
)
fig.add_annotation(
    dict(x=0, y=2.125, xref='x2', yref='y2', text='ALO', showarrow=True, font=dict(size=10, color='red'))
)
fig.add_annotation(
    dict(x=0, y=1.125, xref='x2', yref='y2', text='Model', showarrow=True, font=dict(size=10, color='Blue'))
)
fig.add_annotation(
    dict(x=0, y=0.125, xref='x2', yref='y2', text='True activity', showarrow=True, font=dict(size=10, color='green'))
)

fig.show()