Feature to export dataframe for SingleTimeSeries data

[KapilDuwadi]

@pesap What do you think of this ?

Problem:
Currently if I need to access the data from SingleTimeSeries class, I can access data field. But typical usage also require of knowledge of time array.

Potential solution
So either we can provide both array or we can add method to return dataframe.

[pesap]

That sounds cool. I think the last time we discussed this, we agreed not to do it to avoid having pandas/polars as a dependency. What I ended up implementing on R2X is a method that will create the dataframe from a single time series. Have you explored this solution as well?

[KapilDuwadi]

@pesap I have not looked at R2X implementation. Can you put a link here ?