Quantfig does 90% of what I am looking for but I want to add a custom time series to the main candlestick plot. I am not as familiar with cufflinks as plotly but is there a similar function as fig.add_trace(go.Scatter()row=1, col=1) where a series can be added and a subplot can be assigned?
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Make list of dates out of your time series and apply qf.add_trendline(date1,date2) in cycle.

Art
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Thanks. I'll give this a try. – Mark F Jan 24 '21 at 17:43
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I have been able to use "add_shapes" method to add a line into the candlestick, but it only allows for a single start and end point. @Art, are you suggesting putting this into a for loop to get the desired scatter? Is there an alternate method that is less "brute force"? – Matt P. Feb 21 '21 at 20:49