Need help with scatter graph

[Rohan Patel]

I am undergraduate student trying to learn STATA. I have compiled this graph with the code:

graph twoway (scatter price date)


The result is there, just wondering how I can get a line of best fit through each variable?
Please let me know and sorry its so basic.

[Nick Cox]

On the face of it you have at least two different groups of values there so that fitting a single line would make no sense. So you need to tell us how the grouping arises so that sensible code can be suggested.