Pyechart折线图问题

使用pyecharts生成折线图时，显示不全

效果如图

主代码如下

c = (
    Line(init_opts=opts.InitOpts(width='800px', height='400px'))
    .add_xaxis(x_time)
    .add_yaxis('上证', y_000001,
               markpoint_opts=opts.MarkPointOpts(
                   data=[
                       opts.MarkPointItem(type_='max', name='最高点'),
                       opts.MarkPointItem(type_='min', name='最低点'),
                   ]
               ),
               is_smooth=True
               )

    .set_global_opts(
        title_opts=opts.TitleOpts(title='市场指数'),
        tooltip_opts=opts.TooltipOpts(trigger='axis'),
        xaxis_opts=opts.AxisOpts(type_='category', boundary_gap=True),
        yaxis_opts=opts.AxisOpts(min_=d_000001['收盘'][0],
                                 type_='value',
                                 splitline_opts=opts.SplitLineOpts(is_show=True)),

    )
    .render()
)

怎样显示出低于min_的数据呢？？

c = (
    Line(init_opts=opts.InitOpts(width='800px', height='400px'))
    .add_xaxis(x_time)
    .add_yaxis('上证', y_000001,
               markpoint_opts=opts.MarkPointOpts(
                   data=[
                       opts.MarkPointItem(type_='max', name='最高点'),
                       opts.MarkPointItem(type_='min', name='最低点'),
                   ]
               ),
               is_smooth=True
               )
    .set_global_opts(
        title_opts=opts.TitleOpts(title='市场指数'),
        tooltip_opts=opts.TooltipOpts(trigger='axis'),
        xaxis_opts=opts.AxisOpts(type_='category', boundary_gap=True),
 #       yaxis_opts=opts.AxisOpts(min_=d_000001['收盘'][0],
      #                           type_='value',
      #                           splitline_opts=opts.SplitLineOpts(is_show=True)),
    )
    .render()
)

去掉全局设置中的yaxis_opts
min_表示设置了y轴最小值为d_000001['收盘'][0]。