有以下4个变量
| Y | T | L | WT | S | 
| 1.424689 | 0.568562 | 0.323262 | 7.1 | 26.8 | 
| 1.259952 | 0.729399 | 0.532022 | 7.2 | 24.4 | 
| 1.062619 | 0.857365 | 0.735075 | 9.2 | 24.6 | 
| 1.071307 | 0.946694 | 0.89623 | 9.1 | 23.8 | 
| 1.241881 | 0.993361 | 0.986766 | 9.1 | 27.2 | 
| 0.922333 | 1 | 1 | 7.1 | 24.3 | 
| 0.81093 | 0.910885 | 0.829712 | 6.1 | 26.9 | 
| 0.89175 | 0.485878 | 0.236077 | 7.1 | 25.5 | 
| 1.105324 | 0.290435 | 0.084352 | 7 | 27.6 | 
| 0.860201 | 0.081904 | 0.006708 | 7 | 25.5 | 
| 1.018008 | -0.33667 | 0.113345 | 7.1 | 25.2 | 
| 0.827625 | -0.52785 | 0.278621 | 7 | 29.3 | 
| 0.922333 | -0.69524 | 0.483353 | 7.1 | 26.8 | 
| 0.870828 | -0.96603 | 0.933222 | 7.2 | 26.8 | 
| 2.348485 | -0.77331 | 0.598007 | 7.2 | 26.8 | 
| 1.694596 | -0.24351 | 0.059299 | 6.1 | 27.6 | 
| 1.841031 | -0.03329 | 0.001109 | 6.6 | 28 | 
| 1.841031 | 0.178424 | 0.031835 | 6.3 | 26.7 | 
| 1.219757 | 0.382103 | 0.146003 | 6.4 | 26.7 | 
| 0.937281 | 0.568562 | 0.323262 | 7 | 24.3 | 
| 1.045013 | 0.729399 | 0.532022 | 7.1 | 25.2 | 
| 1.627456 | 0.857365 | 0.735075 | 6.5 | 26.7 | 
| 1.412464 | 0.946694 | 0.89623 | 7 | 25.6 | 
| 0.321205 | 1 | 1 | 7 | 26.8 | 
| 0.321205 | 0.910885 | 0.829712 | 7.5 | 29.5 | 
| 0.542148 | 0.803254 | 0.645218 | 4 | 26.4 | 
| 1.412464 | 0.659425 | 0.434841 | 6 | 29.2 | 
想利用SAS求出T、L、WT以及S对Y变异的贡献率,跪求SAS如何编程~~~