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我試圖創建滑塊,當您拖動滑塊時,顯示的圖形部分只是滑塊上的內容。例如,如果你看下面的圖表,如果滑塊設置爲1990,那麼你只能看到從1990年到2016年的線條。我發現了一個plotly的實例,但我想看看它是否可以用Bokeh完成。 使用rangeslider創建時間序列圖
這是我到目前爲止的代碼:
p = figure(width = 900, height = 450)
p.xaxis.axis_label = 'Year'
p.yaxis.axis_label = 'Aggregated Number of Degrees in Education'
source = ColumnDataSource(df)
fill_source = ColumnDataSource(data=dict(x=[],y=[]))
# Create objects for each line that will be plotted
stem = p.line('year', 'stem', line_color='#8dd3c7', line_width=3, source=source)
stem = p.circle('year', 'stem', line_color='#8dd3c7', line_width=3, source=source)
sped = p.line('year', 'sped', line_color='#fdb462', line_width=3, source=source)
elem = p.line('year', 'elem', line_color='#bebada', line_width=3, source=source)
elem = p.square('year', 'elem', line_color='#bebada', line_width=3, source=source)
other = p.line('year', 'other', line_color='#fb8072', line_width=4, source=source)
aggtotal = p.line('year', 'aggtotal', line_dash=[4,4,], line_color='#80b1d3', line_width=3, source=source)
yaxis = p.select(dict(type=Axis, layout="left"))[0]
yaxis.formatter.use_scientific = False
legend = Legend(items=[("STEM", [stem])
,("SPED" , [sped])
,("Elementary", [elem])
,("Other", [other])
,("Total Education Graduates", [aggtotal])], location=(0, 0))
p.add_tools(HoverTool(tooltips=[("Date", "@year")]))
p.add_layout(legend, 'right')
callback_test = CustomJS(args=dict(source=source,fill_source=fill_source), code="""
var data = source.data;
var fill_data = fill_source.data;
var s_val = cb_obj.value;
fill_data['x']=[];
fill_data['y']=[];
for (i = 0; i < s_val; i++) {
fill_data['y'][i].push(data['y'][i]);
fill_data['x'][i].push(data['x'][i]);
}
fill_source.trigger('change');
""")
sped_slider = Slider(start=1984, end= 2016, value=1, step=1,title="Year",callback=callback_test)
callback_test.args["sped"] = sped_slider
layout = row(p,widgetbox(sped_slider))
這使得滑塊,但它沒有做任何事情,我不知道在哪裏可以從這裏走。