如何避免在情节中重复范围选择器按钮？

Question

我有一个使用范围选择器的子图。

fig = make_subplots(rows = 2, cols = 1)

fig.add_trace(
    go.Scatter(x=list(df.Date), y=list(df.Measure)), row = 1, col = 1)

fig.add_trace(
    go.Scatter(x=list(dfsecond.Date), y=list(dfsecond.Measure)), row = 2, col = 2)

fig.update_layout(
    xaxis=dict(
        rangeselector=dict(
            buttons=list([
                dict(count=1,
                     label="1m",
                     step="month",
                     stepmode="backward")
            ])
        ),
        rangeslider=dict(
            visible=True
        ),
        type="date"
    )
)

范围选择器按钮出现两次。它们在第一行出现一次，在第二行再次出现。我希望范围选择器在第一行只出现一次。

Answer 1

So this is what I did for my project and it has time period buttons for stock 
charts and I edited your code to look just like mine and this worked for me with 
3 rows of charts below my main chart, which is where the buttons are. Here is 
the code:

    fig.update_layout(
        xaxis=dict(
        rangeselector_visible=True,
        rangeselector=dict(
                buttons=list([
                    dict(count=1,
                         label="1m",
                         step="month",
                         stepmode="backward")
                ]),
        )
    ))