求教psl怎么做
y x1 x2 x3 x481.6 678.5 2753.1 626.3 143.4
142.9 881.9 3018.8 835.1 181.7
157.8 1125.8 3278.6 1074.0 236.4
167.4 1362.5 3525.9 1265.5 306.6
166.3 1472.7 3636.0 1286.8 330.4
147.4 1466.0 3611.4 1248.0 342.3
87.5 1448.4 3534.9 1222.4 355.0
241.3 1427.3 3668.6 1267.9 402.2
206.9 1459.6 3667.5 1318.5 422.6
230.3 1486.5 3718.8 1382.1 452.2
396.3 1541.3 3940.6 1467.2 476.1
379.4 1745.8 4129.2 1669.0 515.7
555.2 1844.5 4404.7 1926.0 629.4
610.0 1931.0 4547.0 1980.6 848.4
631.5 2193.7 4832.2 2484.6 739.3
1268.5 2435.6 5712.1 2849.5 811.2
1102.9 2526.8 5638.7 3094.4 899.1
1854.3 2431.8 6296.1 3361.0 1020.8
关于这组数据求教psl怎么做，结果是什么
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