python - 在 plotly 中从底部给图形空间

Question

我正在使用此代码在一个图中绘制两个图，但我无法弄清楚如何从底部到图形留出空间。

def visualize_trends(df, features, titles, fig_title, fn, vs = 0.18, h = 1000, w = 800):

    trace0 = go.Scatter(
        x = df[features[0]],
        y = df['Past_Developers_Count'],
        mode = 'lines+markers',
        name = 'Past',
    )

    trace1 = go.Scatter(
        x = df[features[1]],
        y = df['Future_Developers_Count'],
        mode = 'lines+markers',
        name = 'Future',
    )

    fig = tools.make_subplots(rows = 2, cols = 1, vertical_spacing = vs, subplot_titles = titles)

    fig.append_trace(trace0, 1, 1)
    fig.append_trace(trace1, 2, 1)

    fig['layout'].update(height = h, width = w, paper_bgcolor = 'rgb(233,233,233)', title = fig_title)

    py.iplot(fig, filename = fn)

输出:

有没有像我用vertical_spacing给两个图留空间一样留空间的参数？

Answer 1

我自己想通了。您可以给 margin 以提供所需的空间。在 margin 中，您可以指定 left, right, bottom, up 各个方向的空间。

margin = dict(l = 10, r = 20, b = 30, u = 40)

您可以根据自己的要求传值。在我的案例中，我确实喜欢这样做，以便从底部留出空间，

margin = dict(b = 140)

功能齐全，

def visualize_trends(df, features, titles, fig_title, fn, vs = 0.18, h = 1000, w = 800):

    trace0 = go.Scatter(
        x = df[features[0]],
        y = df['Past_Developers_Count'],
        mode = 'lines+markers',
        name = 'Past',
    )

    trace1 = go.Scatter(
        x = df[features[1]],
        y = df['Future_Developers_Count'],
        mode = 'lines+markers',
        name = 'Future',
    )

    fig = tools.make_subplots(rows = 2, cols = 1, vertical_spacing = vs, subplot_titles = titles)

    fig.append_trace(trace0, 1, 1)
    fig.append_trace(trace1, 2, 1)

    fig['layout'].update(height = h, width = w, margin = dict(b = 140), 
                         paper_bgcolor = 'rgb(233,233,233)', title = fig_title)

    py.iplot(fig, filename = fn)

输出:

注意:我发布这个答案是为了让其他人可以在这个问题上节省时间。