Unlikely Parameter Estimations

[sasgiaz]

Hi. I'm analyzing trend effect on my data which has hundred million rupiah as its unit. 

I got the result of the parameter estimation for the interceipt valued more than hundred million rupiah and I think it's weird and doesn't make sense.. Because I think the result will be around hundred million rupiah like the original data valued. Can anyone tell me what is wrong with my analysis? I use the syntax like this: 

proc reg data = arimaxvlp;
model Transaction = Time/influence;
run;

Thank u so much for ur help.

[PGStats · Accepted solution]

It could be that time=0 (where the intercept is estimated) is very far away from the time values in your data. You could center your time somewhere within your time data range to get a more meaningful intercept estimate.

[sasgiaz]

I understand. Thank you so much!