我想通过Proc Report创建一个摘要报告，该报告应该包含以下列
Probability, Nbr_of_Optys, Total_Media_Value & Tot_Forecast which is computed by the product of probability & Total_Media_Value.
我写了这段代码：
proc report data = Cs1.olympics headline;
column Probability Stage (n) Total_Media_Value Tot_Forecast;
where Probability > 0;
define Probability/group Descending 'Probability';
define Stage/group noprint;
define n / format = comma6. 'Nbr_of_Optys';
define Total_Media_Value/analysis format = dollar25. 'Tot_Budget';
define Tot_Forecast/computed format = dollar25.;
compute Tot_Forecast;
Tot_Forecast = (Total_Media_Value.sum*Probability)/100;
endcomp;
rbreak after / summarize ol ul skip;
run;
运行报告后，将显示一条消息，在执行此报告后的操作
后生成缺失值Probability Nbr_of_Optys Tot_Budget Tot_Forecast
100 7 $171,675,000 $171,675,000
90 4 $205,000,000 $184,500,000
70 8 $264,000,000 $184,800,000
50 20 $127,040,000 $63,520,000
30 3 $2,450,000 $735,000
10 319 $333,729,670 $333,372,967
361 $1,103,894,670
我没有获得Tot_Forecast的总结值