Calculate the predicted value from any two points

[Hajime]

Can you calculate the predicted value from any two points (e.g. the data of 1 month ago and the data of 2 months ago) using "predict" command?
In addition, is there any other way?

[martin_mueller]

In principle the LL algorithm of the predict command allows as low as two values, but you may not like the results.

What do you expect the predicted value to be if you enter "0, 1" as data points? The LL algorithm will predict "0". If you expect linear progression it'd be "2", if you expect averages it'd be "0.5".

[Hajime]

Thank you for your answer.
However, I want to predict using two time-series data.
Please let me know if you have any good ideas.