SAS上机练习题(四)参考答案.pdf

SAS SAS 2010 12 16 62 data a do row 1 to 3 do col 1 to 2 input f output end end cards 35 5 20 10 7 25 proc freq table row col chisq nopercent norol weight f run Frequency Row Pct Table of row by col col row1 2 Total 135 87 50 5 12 50 40 220 66 67 10 33 33 30 37 21 88 25 78 13 32 Total 6240102 StatisticDFValueProb Chi Square 232 7361 0001 Likelihood Ratio Chi Square 234 6664 0001 Mantel Haenszel Chi Square 131 1575 ChiSq row 226 3232 0001 row col Wald Chi Square 26 3232 P ChiSq Intercept 1 0 45540 24983 32400 0683 row1 1 1 49050 372316 0331 0001 row2 1 0 23780 33520 50310 4781 Logistic logit 0 4554 1 4905 row 1 0 2378 row 2 A row 1 1 row 2 0 B row 1 0 row 2 1 C row 1 1 row 2 1 Odds Ratio Estimates EffectPoint Estimate 95 Wald Confidence Limits row 1 vs 3 25 0007 11187 887 row 2 vs 3 7 1432 30622 129 OR row 1 vs 3 row 1 A 2 B 3 C A C OR 25 95 CI 7 111 87 887 A C B C OR 7 143 95 CI 2 306 22 129 SAS SAS 2010 12 16 65 proc format value yesnof 0 1 value resf 0 1 data a input x1 x7 label x1 x2 x3 x4 x5 x6 x7 format x1 x6 yesnof x7 resf cards 1 0 0 0 0 0 1 1 0 0 1 1 1 1 1 0 0 1 0 1 1 1 0 0 1 0 1 1 0 0 0 1 0 0 1 0 0 1 1 1 0 1 0 0 1 1 0 1 1 1 0 0 0 1 0 1 1 0 1 1 1 1 1 0 1 0 0 1 1 1 1 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 1 0 1 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 freq proc tabulate class x1 x7 table x1 x2 x3 x4 x5 x6 x7 n pctn keylabel n pctn run logistic proc logistic des des logistic class x1 x6 ref firstparam ref ref first OR first last model x7 x1 x6 selection stepwise run quit SAS SAS 2010 12 16 66 tabulate 2064 521135 48 630 001470 00 2453 332146 67 233 33466 67 2156 761643 24 535 71964 29 2163 641236 36 527 781372 22 1854 551545 45 844 441055 56 2062 501237 50 631 581368 42 Logistic Response Profile Ordered Valuex7 Total Frequency 11 25 20 26 X7 1 logistic logit 0 1 Class Level Information Design Variables Class Value 1 x1 0 1 x2 0 1 x3 0 1 x4 0 1 x5 0 1 x6 0 1 SAS SAS 2010 12 16 67 Summary of Stepwise Selection Effect StepEnteredRemoved DF Number In Score Chi Square Wald Chi SquarePr ChiSq Variable Label 1 x4 1 15 9928 0 0144 2 x1 1 25 5999 0 0180 X4 X1 Type III Analysis of Effects EffectDF Wald Chi SquarePr ChiSq x1 15 24590 0220 x4 15 37880 0204 Analysis of Maximum Likelihood Estimates ParameterDFEstimate Standard ErrorChi SquarePr ChiSq Intercept 1 0 37810 35051 16410 2806 x11 1 0 75550 32995 24590 0220 x41 1 0 79070 34095 37880 0204 Odds Ratio Estimates EffectPoint Estimate 95 Wald Confidence Limits x1 1 vs 0 4 5311 24416 512 x4 1 vs 0 4 8621 27818 502 OR 95 SAS SAS 2010 12 16 68 a b n n Crude OR 95 CI P value Adjusted OR 95 CI P value 20 64 5211 35 48 RefcRef 6 30 0014 70 00 4 242 1 269 14 179 0 01894 531 1 244 16 5120 0220 24 53 3321 46 67 Ref 2 33 334 66 67 2 285 0 379 13 765 0 3669 21 56 7616 43 24 Ref 5 35 719 64 29 2 3620 662 8 430 0 1853 21 63 6412 36 36 Ref Ref 5 27 7813 72 22 4 550 1 301 15 909 0 01774 862 1 278 18 5020 0204 18 54 5515 45 45 Ref 8 44 4410 55 56 1 5000 473 4 761 0 4914 20 62 5012 37 50 Ref 6 31 5813 68 42 3 610 1 084 12 026 0 0365 a logistic SAS b logistic SAS c Reference 51 25 49 log