Scatter Plot Animation - Trouble Adding Trailing Lines

📊 Plotly Python
7

@mvitha

To associate a slider to this animation https://community.plotly.com/t/cumulative-lines-animation-in-python/25707/2 you must
give a name to each frame, because the slider is connected to the frames, via their names.
Hence the frame definition will be:

frames = [dict(data= [dict(type='scatter',
                           x=df.Date[:k+1],
                           y=low[:k+1]),
                      dict(type='scatter',
                           x=df.Date[:k+1],
                           y=high[:k+1])],
               traces= [0, 1], 
               name = f'frame{k+1}'
              )for k  in  range(1, len(low)-1)]

Then define the slider as follow:

sliders = [dict(steps = [dict(method= 'animate',
                              args= [[f'frame{k+1}'], #HERE IS THE k^th FRAME NAME                          
                              dict(mode= 'immediate',
                                   frame= dict(duration=3, redraw= False),
                                   transition=dict(duration= 0))
                                 ],
                              label=f'{k+1}'  #label for each frame marked on the slider
                             ) for k in range(1, len(low)-1)], 
                active=1,
                transition= dict(duration= 0 ),
                x=0, # slider starting position  
                y=0, 
                currentvalue=dict(font=dict(size=12), 
                                  prefix='frame: ', 
                                  visible=True, 
                                  xanchor= 'center'
                                 ),  
               len=1.0) #slider length
           ]

fig.update_layout(sliders=sliders)