Time Series Code; Help

#1
Hi Folks,

I'm trying to fit a time series curve which I need to apply for different data. I used Proc Forecast to get the estimates. I need to translate the estimates into a predictive score. Can anyone help me on the code to program Forecast value from the estimates. Thanks.

Ex:

Proc Forecast method=expo trend=2 lead=3

Output Estimates: Weight=0.10557 Sigma=1.454 Constant=12.8686 Linear=0.43160

Time Actual Forecast
1 1.178 1.0446
2 0.4176 1.2703
3 1.0569 1.2892
4 2.1157 1.4297
5 2.9546 1.7614
6 2.5689 2.2079
7 1.809 2.492
8 1.7865 2.5597
9 0.5731 2.6007
10 2.4757 2.3682
11 2.5777 2.564
12 4.6568 2.7411
13 3.9781 3.32
14 2.6201 3.6547
15 4.8607 3.6394
16 6.1923 4.0888
17 5.4186 4.7381
18 7.5083 5.1104
19 6.6726 5.8529
20 8.5028 6.2889
21 9.4018 7.0284
22 11.3533 7.8263
23 10.8171 8.8942
24 9.5676 9.6627
25 9.7301 10.0266
26 11.0162 10.3468
27 11.5376 10.8677
28 11.856 11.3962
29 12.5362 11.8878
30 14.6459 12.4243