我一直在尝试在使用 Holoviews 和 Bokeh 时设置标题。我将 3 个图相互叠加。代码如下所示:
%%opts Curve [width=900 height=400 show_grid=True tools=['hover'] finalize_hooks=[apply_formatter]]
%%opts Curve (color=Cycle('Category20'))
%%opts Overlay [ legend_position='bottom' ] Curve (muted_alpha=0.5 muted_color='black' )
actual_curve = hv.Curve(df_reg_test, 'date', 'y', label='Actual')
existing_curve = hv.Curve(df_reg_test, 'date', 'Forecast Calls', label='Existing Forecast')
xgb_curve = hv.Curve(df_reg_test, 'date', 'xgb_pred', label='New Forecast')
actual_curve * existing_curve * xgb_curve
The plot looks like this:
![Holoview Plot](https://i.stack.imgur.com/I1AJj.png)
正如您所看到的,各个曲线的标签在图例中显示得很好,但我在图的顶部没有得到标题。
如何手动设置标题?
向叠加层添加通用标题的另一种方法是使用:
opts.Overlay(title='叠加层的新标题')
这是一个例子在 Holoview 叠加图上设置标题:
# import libraries
import numpy as np
import holoviews as hv
from holoviews import opts
hv.extension('bokeh')
# create some sample data
data1 = np.random.normal(size=[50, 2])
data2 = np.random.normal(size=[50, 2])
# create your overlay plot
all_plots = hv.Scatter(data1, label='data1') * hv.Scatter(data2, label='data2')
# add your title to your overlay with opts.Overlay()
all_plots.opts(opts.Overlay(title='New title for Overlay'))
结果图如下所示:
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