1、SPSS作業(yè)8：二項(xiàng)Logistic 回歸分析Categorical Variables CodingsParameter coding(1)(2).000.000.0001441.0001551912401.000女1.000）和0 0Block 0: Beginning BlockPredicted是否購(gòu)買不購(gòu)買 購(gòu)買ObservedStep 000100.0.0Overall Percentage62.4a. Constant is included in the model.b. The cut value is .500Variables in the EquationBS.E.Wa

2、lddfSig.Exp(B)Variables in the EquationS.E. Wald.099 26.002BdfSig.000Exp(B).602Step 0Constant-.5071 p dfSig.260Step 0Variablesage112114gender(1)income.031.005.087.001.00110.64018.273Overall Statistics p p a 為 p Block 1: Method = EnterdfSig.001Step 1Step444BlockModel18.44118.441.001.001ppa為率p PNagelk

3、erke RSquare.042.057a. Estimation terminated at iteration number 4 becauseparameter estimates changed by less than .001. PredictedPercentageObserved購(gòu)買CorrectStep 1333187.719.161.9Overall Percentagea. The cut value is .500 。 Variables in the EquationBdfExp(B)1.026age.025.511112111.209.015.002.703.002

4、.0051.667income(1)income(2)Constant.101.787.263.253.7541.1062.196.121-2.112a. Variable(s) entered on step 1: age, gender, income.a為的p，0 PBlock 1: Method = Forward Stepwise (Likelihood Ratio)Omnibus Tests of Model CoefficientsdfSig.005Step222133BlockModelStep.005.005.015.001.001BlockModel16.45916.459

5、 Model if Term RemovedVariabledfincomegenderincome-285.325212.005-280.053-282.976.015.00311.761 是 a為p P 95.0% C.I.for EXP(B)Lower UpperBS.E.dfExp(B)income211income(1)income(2).259.001.982.0061.006.6061.670.2477.4241.9581.2083.174112111.000.016.003.714.002.000.4671.6561.0992.493income(1)income(2)Cons

6、tant.096.761.6581.8433.5021.307-1.113a. Variable(s) entered on step 1: income.b. Variable(s) entered on step 2: gender.p P p P dfSig.174Variablesage11gender(1)5.865.0157.8241.9841.984211.020.159.159Overall Statistics Nagelkerke RSquareStep-2 Log likelihood12.024.037.033.051b. Estimation terminated a

7、t iteration number 4 becauseparameter estimates changed by less than .001. 距1 Hosmer and Lemeshow TestStepChi-squaredfSig.12.0008.943141.000.063 Contingency Table for Hosmer and Lemeshow Test是否購(gòu)買 = 購(gòu)買Observed ExpectedObserved90Expected90.000Total1321242.00046.0009898.00014431234581355855403781.00032

8、.36353.60257.63744.39844.03574.00010.63719.39831.36326.60230.965155437389717515343138Total1321242.00046.0009898.00014431234568135585540374481.00032.36353.60257.63744.39844.03536.96574.00010.63719.39831.36326.60230.96543.0351554373897175801534313836 p PredictedObserved是否購(gòu)買Percentage購(gòu)買Correct100.00016

9、2.062.483.622.260.6Overall Percentage4436Overall Percentagea. The cut value is .500Step number: 2Observed Groups and Predicted Probabilities160 FREQUENCY120 180 1111111111001 10 10 140 0 00 00 00 00 00 00 00 000000000Predicted Prob: .1 .2 .3 .4 .5 .6 .7 .8 .901Group: 00000000000000000000000000000000

10、00000000000000000011111111111111111111111111111111111111111111111111Predicted Probability is of Membership for 購(gòu)買The Cut Value is .50Symbols: 0 - 不購(gòu)買1 - 購(gòu)買Each Symbol Represents 10 Cases.014個(gè)個(gè) P= + P= + P= + P P 至 P 至是否購(gòu)年齡3買0011000000010014147413932323345434039463838442222222222222221111111111111110

11、001000111110014641404435403732452941392630382222222222222223333333333333330000010110010000111100011392645403530444735363438384741453738294035443950412222222222222222222222222111111111111111111111111100000101000000000000001013539243246403842432958403547334037374036323749383622222222211111111111111113

12、333333331111111111111111001110011000010010000101041403836373941335131313546394740563637364436403835222222222222222222222222211111111111111111111111110000000100011000001101000424438404140473938434648383538373229413940483740421111111111111111111111111111111111111111111111111110001011100000111000110113

13、545414237554133363338385550313737384142343128353922222222222222222222222221111111111111111111111112000000101000100000010000042384645333433424743354333263443413825453734393244111111111111111111111111111222222222222222222222220110000011000110101011010393445414246423347394133433143454840353334433531482

14、222222222222222222222222222222222222222222222222200000000110010101011010003930364539444746343831343338434347413738383534334011111111111111111111111112222222222222222222222222100001001010011101001000036393740394435333450444036413738384136424343504242222222222222222222222222222222222222222222222222220

15、010000000000000000010100394144374145294040354940384135334736374044484341301111111111111111111111111222222222222222222222222200011011010001010111100003833394144423349403738363934443439383452414137454422222222222222222222222222222222222222222222233333001001010000001100111101142334133374225393936434134

16、374642404139343535444538111111111111111111111111133333333333333333333333331001010000011011011110010353028403344394231294933353440403238234939324338342222222222222222222222222333333333333333333333333300001111111010101010101103938433145363349414131343944463252414850383634373811111111111111111111111113333333333333333333333