Logistic Regression

Predict the Claimants appointed Attorney

claimants <- read.csv("/home/shrikanth/data/Data Science/data science/datasetsandcodesandassignments/claimants.csv")

attach(claimants)


fit1<-glm(ATTORNEY~CLMSEX+CLMINSUR+SEATBELT+CLMAGE+LOSS,data = claimants,family = "binomial")
## Warning: glm.fit: fitted probabilities numerically 0 or 1 occurred
summary(fit1)
## 
## Call:
## glm(formula = ATTORNEY ~ CLMSEX + CLMINSUR + SEATBELT + CLMAGE + 
##     LOSS, family = "binomial", data = claimants)
## 
## Deviance Residuals: 
##      Min        1Q    Median        3Q       Max  
## -1.74474  -1.01055  -0.02547   0.95764   2.78320  
## 
## Coefficients:
##              Estimate Std. Error z value Pr(>|z|)    
## (Intercept) -0.199978   0.246769  -0.810  0.41772    
## CLMSEX       0.432996   0.135706   3.191  0.00142 ** 
## CLMINSUR     0.602173   0.231030   2.606  0.00915 ** 
## SEATBELT    -0.781079   0.566125  -1.380  0.16768    
## CLMAGE       0.006487   0.003324   1.952  0.05097 .  
## LOSS        -0.385044   0.034845 -11.050  < 2e-16 ***
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## (Dispersion parameter for binomial family taken to be 1)
## 
##     Null deviance: 1516.1  on 1095  degrees of freedom
## Residual deviance: 1287.8  on 1090  degrees of freedom
##   (244 observations deleted due to missingness)
## AIC: 1299.8
## 
## Number of Fisher Scoring iterations: 6
# Linear regression technique can not be employed
prob1 <- predict(fit1,type="response")
# Logistic Regression 
logit<-glm(ATTORNEY~factor(CLMSEX)+factor(CLMINSUR)+factor(SEATBELT)+CLMAGE+LOSS,family=binomial,data = claimants)
## Warning: glm.fit: fitted probabilities numerically 0 or 1 occurred
summary(logit)
## 
## Call:
## glm(formula = ATTORNEY ~ factor(CLMSEX) + factor(CLMINSUR) + 
##     factor(SEATBELT) + CLMAGE + LOSS, family = binomial, data = claimants)
## 
## Deviance Residuals: 
##      Min        1Q    Median        3Q       Max  
## -1.74474  -1.01055  -0.02547   0.95764   2.78320  
## 
## Coefficients:
##                    Estimate Std. Error z value Pr(>|z|)    
## (Intercept)       -0.199978   0.246769  -0.810  0.41772    
## factor(CLMSEX)1    0.432996   0.135706   3.191  0.00142 ** 
## factor(CLMINSUR)1  0.602173   0.231030   2.606  0.00915 ** 
## factor(SEATBELT)1 -0.781079   0.566125  -1.380  0.16768    
## CLMAGE             0.006487   0.003324   1.952  0.05097 .  
## LOSS              -0.385044   0.034845 -11.050  < 2e-16 ***
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## (Dispersion parameter for binomial family taken to be 1)
## 
##     Null deviance: 1516.1  on 1095  degrees of freedom
## Residual deviance: 1287.8  on 1090  degrees of freedom
##   (244 observations deleted due to missingness)
## AIC: 1299.8
## 
## Number of Fisher Scoring iterations: 6
# Odds Ratio
exp(coef(logit))
##       (Intercept)   factor(CLMSEX)1 factor(CLMINSUR)1 factor(SEATBELT)1 
##         0.8187490         1.5418701         1.8260829         0.4579119 
##            CLMAGE              LOSS 
##         1.0065085         0.6804208
# Confusion matrix table 
prob <- predict(logit,type=c("response"),claimants)
prob
##            1            2            3            4            5 
## 2.970231e-06 5.016792e-01 5.762915e-01 4.521417e-01 6.415700e-01 
##            6            7            8            9           10 
## 7.197599e-01 2.887006e-01 3.049922e-01 7.084578e-01           NA 
##           11           12           13           14           15 
## 2.127887e-01 1.024493e-03 4.505382e-01 6.975276e-01 7.350044e-01 
##           16           17           18           19           20 
## 5.673377e-01 7.671356e-01 6.193051e-01 6.038798e-01 3.210857e-01 
##           21           22           23           24           25 
##           NA 7.384916e-01 2.074101e-03           NA 4.256088e-02 
##           26           27           28           29           30 
## 6.345123e-01 6.770328e-01 5.612539e-01 6.238091e-01           NA 
##           31           32           33           34           35 
## 3.546010e-01           NA 5.568532e-01 6.030216e-01 3.171081e-01 
##           36           37           38           39           40 
## 3.972807e-01 3.257734e-01 4.341099e-01 6.148278e-01 4.260576e-01 
##           41           42           43           44           45 
## 5.682431e-01 6.489410e-02 1.211703e-01 2.079400e-02 5.640246e-01 
##           46           47           48           49           50 
##           NA 3.173112e-01 6.007720e-01           NA 3.700633e-01 
##           51           52           53           54           55 
## 3.785143e-01 5.931725e-01           NA           NA 6.414805e-01 
##           56           57           58           59           60 
## 4.315197e-06           NA 9.282735e-02 7.440479e-01 5.217440e-01 
##           61           62           63           64           65 
##           NA           NA           NA 6.653118e-01 6.222573e-01 
##           66           67           68           69           70 
## 7.197762e-01           NA 6.378427e-01 5.557522e-01 5.775275e-01 
##           71           72           73           74           75 
## 9.217805e-08 5.485540e-01 6.021393e-01 6.311836e-01 5.574578e-01 
##           76           77           78           79           80 
## 2.863820e-01 5.741273e-01           NA 4.849379e-01 3.261919e-01 
##           81           82           83           84           85 
## 5.660798e-01 6.553435e-01           NA 4.124017e-01 5.843275e-01 
##           86           87           88           89           90 
## 6.231840e-01 3.146153e-01 7.319410e-01 3.365576e-01 3.163482e-01 
##           91           92           93           94           95 
##           NA 2.890883e-01 6.355156e-01 3.638348e-01 5.403384e-01 
##           96           97           98           99          100 
## 7.786921e-01           NA 2.491388e-06 5.503815e-02 5.703947e-01 
##          101          102          103          104          105 
## 5.418366e-01 7.126215e-01 6.247389e-01           NA 5.549808e-01 
##          106          107          108          109          110 
## 2.600384e-01 3.009099e-07 2.257167e-01 6.915123e-01           NA 
##          111          112          113          114          115 
## 6.095755e-01 7.091804e-01 1.674699e-01           NA 6.771650e-01 
##          116          117          118          119          120 
##           NA           NA 4.297040e-01 4.867733e-01           NA 
##          121          122          123          124          125 
## 6.862460e-01 2.067411e-01 7.529408e-01 5.285603e-01 3.385482e-01 
##          126          127          128          129          130 
## 4.077497e-01           NA 8.532928e-02 6.141726e-01           NA 
##          131          132          133          134          135 
## 7.337525e-01 7.573118e-01           NA           NA 3.360392e-01 
##          136          137          138          139          140 
## 5.933615e-01           NA 3.173771e-01 7.359304e-01 5.198513e-01 
##          141          142          143          144          145 
## 6.521264e-01 4.166037e-01           NA 5.268041e-02 4.337953e-01 
##          146          147          148          149          150 
## 7.890390e-01 5.212168e-01 8.017384e-09 3.358798e-10 6.746935e-01 
##          151          152          153          154          155 
## 9.358757e-02           NA 6.995671e-01 6.536552e-01 6.208575e-01 
##          156          157          158          159          160 
## 2.173464e-01 4.254108e-06 4.300573e-07           NA 5.278776e-01 
##          161          162          163          164          165 
## 3.619466e-01 5.799767e-01           NA 3.492176e-01           NA 
##          166          167          168          169          170 
## 5.982900e-01 6.081530e-01 6.063797e-01 2.447841e-01 7.344381e-01 
##          171          172          173          174          175 
## 5.678596e-01 3.181171e-01 2.987517e-01 5.796319e-01 4.397334e-01 
##          176          177          178          179          180 
## 2.283771e-01 6.585542e-01 6.551036e-01 3.264942e-01 3.517341e-02 
##          181          182          183          184          185 
## 3.121801e-01 6.069793e-01 5.579327e-01           NA           NA 
##          186          187          188          189          190 
## 6.237673e-01           NA 6.636755e-01           NA 6.250588e-01 
##          191          192          193          194          195 
## 5.773416e-01 1.692446e-01 7.056014e-01 4.073862e-01 6.924722e-01 
##          196          197          198          199          200 
## 5.788357e-01 3.059782e-01 7.509581e-01 6.387423e-01           NA 
##          201          202          203          204          205 
## 7.159956e-01 7.309554e-01 4.412030e-01 3.981250e-01 5.509766e-01 
##          206          207          208          209          210 
## 6.184571e-01           NA 5.895409e-01 6.596294e-03 1.357063e-01 
##          211          212          213          214          215 
## 7.148314e-01 6.362018e-01 7.028990e-01 4.135696e-01 7.398143e-01 
##          216          217          218          219          220 
## 7.253662e-01 3.959042e-01 2.322568e-01 6.941917e-01 6.490576e-01 
##          221          222          223          224          225 
## 4.307054e-01 6.624348e-01           NA 4.823127e-01 5.485197e-01 
##          226          227          228          229          230 
## 4.731368e-01 5.772676e-01 5.501258e-01 3.294901e-01 3.811610e-01 
##          231          232          233          234          235 
## 6.597814e-01 5.633471e-01 3.730704e-01 3.625153e-01           NA 
##          236          237          238          239          240 
## 5.798337e-01 6.273123e-01 5.038786e-01 6.379014e-01 7.047208e-01 
##          241          242          243          244          245 
## 5.911297e-01 1.939510e-01 3.992905e-07 3.685169e-01 6.966581e-01 
##          246          247          248          249          250 
## 4.182465e-01 6.342876e-01 6.655399e-01           NA 6.975155e-01 
##          251          252          253          254          255 
## 7.224607e-01 2.002377e-01 6.437778e-01 1.713118e-01           NA 
##          256          257          258          259          260 
## 2.802224e-01           NA 3.356860e-01 5.322550e-01 1.551240e-01 
##          261          262          263          264          265 
## 6.664404e-01 6.344561e-01 4.034021e-01 6.763788e-01 6.145928e-01 
##          266          267          268          269          270 
## 5.716228e-01 3.893014e-01           NA 7.600887e-01 3.756184e-01 
##          271          272          273          274          275 
## 6.996603e-01 3.139810e-01 5.587956e-01 4.349818e-01           NA 
##          276          277          278          279          280 
## 6.381386e-01 3.841709e-01           NA 6.610945e-01 6.568630e-01 
##          281          282          283          284          285 
## 7.044362e-01 5.626036e-01           NA 2.222366e-01           NA 
##          286          287          288          289          290 
## 1.204714e-01 4.611915e-01 8.942955e-12 5.420278e-01 1.864206e-01 
##          291          292          293          294          295 
## 7.373905e-01 4.156711e-01 4.688168e-01 4.056131e-01           NA 
##          296          297          298          299          300 
## 4.132191e-01 5.522272e-01 7.152642e-01           NA 6.382083e-01 
##          301          302          303          304          305 
## 5.728747e-01           NA 3.528997e-01 7.002705e-01 6.496634e-01 
##          306          307          308          309          310 
## 5.683519e-01 3.329485e-01 6.409417e-01 7.332120e-01 5.418572e-02 
##          311          312          313          314          315 
## 5.940986e-01 5.992393e-01 4.777018e-01 4.337984e-01 5.753788e-01 
##          316          317          318          319          320 
## 7.070342e-01 5.987526e-01 7.023919e-01           NA 5.524693e-01 
##          321          322          323          324          325 
## 7.242446e-01 5.677365e-01 6.591807e-01 2.170219e-01           NA 
##          326          327          328          329          330 
## 7.561498e-01 6.928003e-01 4.059985e-01 5.266183e-01 2.554087e-01 
##          331          332          333          334          335 
## 4.233010e-01 5.526855e-01           NA 1.333955e-07 1.429856e-01 
##          336          337          338          339          340 
##           NA 2.888897e-01 6.789478e-01 5.443063e-01 3.303105e-01 
##          341          342          343          344          345 
## 6.942808e-01 3.306898e-01 5.630630e-01 6.473627e-01 5.877469e-01 
##          346          347          348          349          350 
## 3.481161e-01 5.766806e-01 5.099706e-01 5.551212e-01 3.500559e-01 
##          351          352          353          354          355 
## 1.803321e-01 1.508854e-01 6.392458e-01           NA 2.946686e-01 
##          356          357          358          359          360 
## 2.262594e-01 4.485978e-01 8.049501e-02 6.990566e-01 4.219957e-01 
##          361          362          363          364          365 
## 6.064503e-01 4.722487e-01           NA 2.220446e-16 6.750571e-01 
##          366          367          368          369          370 
## 4.763683e-01           NA 5.997555e-01 5.234818e-01 5.959743e-01 
##          371          372          373          374          375 
## 6.867461e-01 4.086772e-01 6.709770e-01           NA 9.490528e-02 
##          376          377          378          379          380 
## 2.689508e-01 6.776721e-01 3.108628e-01 7.050214e-01 2.974119e-01 
##          381          382          383          384          385 
## 6.239345e-01 4.585240e-01 9.852664e-02 6.452688e-01 5.231472e-01 
##          386          387          388          389          390 
##           NA 6.750492e-01 7.230078e-01           NA 2.979163e-01 
##          391          392          393          394          395 
## 6.337974e-01 6.039942e-01 6.645237e-01 6.987131e-01           NA 
##          396          397          398          399          400 
##           NA 6.317638e-01           NA           NA           NA 
##          401          402          403          404          405 
## 2.247696e-01           NA 2.394672e-03 6.945836e-09           NA 
##          406          407          408          409          410 
## 2.054721e-01 2.652393e-01           NA 5.407058e-01           NA 
##          411          412          413          414          415 
## 1.963797e-08 6.842905e-01 3.135422e-01 5.182926e-01 1.978388e-01 
##          416          417          418          419          420 
## 7.033078e-12 5.973162e-01 2.373470e-01 6.947338e-01 2.128909e-01 
##          421          422          423          424          425 
## 5.353233e-01 6.147311e-01 5.716637e-01 6.723948e-01 4.229705e-01 
##          426          427          428          429          430 
## 6.157276e-01 6.795759e-01           NA           NA 7.119186e-01 
##          431          432          433          434          435 
## 3.818861e-01           NA 1.921571e-01 2.399063e-09           NA 
##          436          437          438          439          440 
## 2.845991e-01 3.865147e-01 3.904338e-01 3.495519e-01 3.261919e-01 
##          441          442          443          444          445 
##           NA           NA 6.823741e-01 6.606369e-01 4.305251e-01 
##          446          447          448          449          450 
##           NA 4.682554e-01 4.650258e-01 3.743244e-01 3.629758e-01 
##          451          452          453          454          455 
## 4.387564e-01 5.118487e-01           NA 6.188122e-01           NA 
##          456          457          458          459          460 
##           NA 9.889933e-02 7.506198e-01           NA           NA 
##          461          462          463          464          465 
## 6.197420e-01 6.909123e-01 5.247564e-01 5.187065e-01 5.997191e-01 
##          466          467          468          469          470 
##           NA 7.580894e-01           NA 3.845771e-01 5.572764e-01 
##          471          472          473          474          475 
## 2.948027e-01           NA 4.055143e-01 1.572880e-01 4.258804e-02 
##          476          477          478          479          480 
## 7.099644e-01 5.456396e-11 6.774963e-01 3.054460e-01 7.022260e-01 
##          481          482          483          484          485 
## 6.620511e-01 7.448579e-01 6.652618e-01           NA           NA 
##          486          487          488          489          490 
## 6.537363e-01 6.823868e-01 3.792233e-01           NA 4.194423e-01 
##          491          492          493          494          495 
##           NA           NA 7.121003e-01 4.365051e-01 4.567356e-01 
##          496          497          498          499          500 
##           NA 5.646807e-01 6.736324e-01 6.934183e-01 1.965194e-01 
##          501          502          503          504          505 
## 1.325556e-01 3.039156e-01 9.086265e-02 5.727719e-01 3.340824e-01 
##          506          507          508          509          510 
##           NA 3.895130e-01 6.568630e-01 4.303142e-01           NA 
##          511          512          513          514          515 
## 5.391618e-01 4.252752e-01 5.646873e-01 7.732748e-01 5.726091e-01 
##          516          517          518          519          520 
## 4.507520e-01 7.685146e-01 3.130498e-01 2.864315e-01 6.850439e-01 
##          521          522          523          524          525 
## 7.526845e-01 6.408286e-01           NA           NA 6.009930e-01 
##          526          527          528          529          530 
## 6.115430e-01 1.732818e-01           NA 3.740095e-01 5.001922e-01 
##          531          532          533          534          535 
##           NA 7.294958e-01 5.919672e-01 4.593704e-01 7.522129e-01 
##          536          537          538          539          540 
## 6.294975e-01 2.284711e-01 4.862847e-01           NA 6.595373e-02 
##          541          542          543          544          545 
## 3.623211e-01 3.964857e-01 4.028766e-01 3.265280e-01 3.353529e-01 
##          546          547          548          549          550 
## 4.268556e-01           NA           NA 1.325959e-01 7.079321e-01 
##          551          552          553          554          555 
##           NA 3.975303e-01 2.115781e-01 5.073845e-01           NA 
##          556          557          558          559          560 
## 1.016882e-01 6.067924e-01 5.936963e-01 2.401781e-01           NA 
##          561          562          563          564          565 
## 2.421615e-01 3.684430e-01           NA 5.339734e-01 7.073819e-01 
##          566          567          568          569          570 
## 2.231764e-01 7.480424e-01 6.041702e-02 5.836612e-01 4.417189e-01 
##          571          572          573          574          575 
## 6.156096e-01 4.613238e-01 5.475140e-01 4.525117e-01 2.141580e-01 
##          576          577          578          579          580 
## 3.610844e-01 5.865281e-01 3.055541e-01 5.369433e-01           NA 
##          581          582          583          584          585 
## 1.913488e-01 6.103919e-01 7.024236e-01           NA 7.636955e-01 
##          586          587          588          589          590 
## 2.334474e-01 3.033343e-07 4.585558e-01           NA 6.704512e-01 
##          591          592          593          594          595 
## 6.975401e-01 6.673711e-01 3.026624e-01 4.225918e-01 7.524000e-01 
##          596          597          598          599          600 
## 1.774545e-01 7.769055e-01 6.820762e-01 6.641412e-01 7.440193e-11 
##          601          602          603          604          605 
## 5.906246e-01           NA 7.030305e-01 4.329154e-01 3.823453e-01 
##          606          607          608          609          610 
##           NA           NA 6.476983e-01 5.852684e-01 2.272046e-01 
##          611          612          613          614          615 
## 5.955104e-01           NA 6.422781e-01 1.984320e-01           NA 
##          616          617          618          619          620 
## 6.633991e-01 4.383397e-01 6.680468e-03 6.887605e-01 2.987158e-01 
##          621          622          623          624          625 
## 4.823787e-01 3.080087e-01 5.164925e-01 4.225535e-01           NA 
##          626          627          628          629          630 
## 1.133302e-01 9.568106e-02 2.066339e-01 7.547767e-01 5.794565e-01 
##          631          632          633          634          635 
##           NA 5.300987e-01 3.848505e-01 5.896475e-01 4.825620e-02 
##          636          637          638          639          640 
## 7.286319e-01 6.830467e-01 3.070322e-01 6.326547e-01 6.023073e-01 
##          641          642          643          644          645 
## 5.135574e-01 3.084142e-01 1.166481e-01 7.077080e-01           NA 
##          646          647          648          649          650 
## 1.887468e-01 4.173698e-01 7.800924e-01 2.941312e-01 4.399378e-01 
##          651          652          653          654          655 
## 5.975354e-01 6.141894e-01 6.879443e-01 1.293214e-01 6.283652e-01 
##          656          657          658          659          660 
##           NA 3.397309e-01 4.420775e-01 2.259028e-01 5.887241e-01 
##          661          662          663          664          665 
##           NA 8.122428e-02 6.970451e-01 7.206275e-01 4.297107e-01 
##          666          667          668          669          670 
## 2.682409e-01           NA           NA 4.750093e-01 7.684876e-01 
##          671          672          673          674          675 
##           NA 7.650279e-01 6.099499e-01 1.681020e-01 2.581206e-01 
##          676          677          678          679          680 
## 6.831374e-01           NA 2.656335e-01 4.457652e-01 2.785795e-01 
##          681          682          683          684          685 
## 6.782023e-01 5.496716e-01           NA 6.079280e-01 1.514905e-01 
##          686          687          688          689          690 
##           NA 6.754864e-01 7.300320e-01 4.376198e-01 7.258517e-02 
##          691          692          693          694          695 
## 5.777012e-01 1.565836e-01 6.889701e-01           NA 5.966342e-01 
##          696          697          698          699          700 
## 1.378802e-01 3.661166e-01           NA 6.798176e-01 1.038767e-01 
##          701          702          703          704          705 
## 6.884223e-01 6.440560e-01 4.304734e-01 6.933737e-01 1.387561e-01 
##          706          707          708          709          710 
## 5.931194e-01           NA 6.858059e-01 5.939262e-01 5.937805e-01 
##          711          712          713          714          715 
## 1.351025e-01 2.309650e-01 6.505259e-01           NA 7.455758e-01 
##          716          717          718          719          720 
## 9.968857e-02 6.466484e-01 3.404721e-01 1.526169e-03 6.788639e-01 
##          721          722          723          724          725 
## 3.790854e-01 6.125919e-02           NA 3.398802e-01 6.948402e-01 
##          726          727          728          729          730 
## 5.972095e-01 6.491565e-01 2.567184e-01 3.245249e-01 5.697999e-01 
##          731          732          733          734          735 
## 5.945828e-01 2.791364e-01           NA 4.392689e-01 7.148197e-01 
##          736          737          738          739          740 
## 5.979197e-01 7.114870e-02 7.568331e-01 2.178197e-01 2.444715e-01 
##          741          742          743          744          745 
## 7.817393e-01 2.892032e-01 6.753948e-01 1.861693e-01 2.961766e-01 
##          746          747          748          749          750 
## 4.684915e-02 6.603834e-01           NA 3.756728e-01 6.530053e-01 
##          751          752          753          754          755 
## 6.873153e-01           NA 3.802339e-01 6.077583e-01           NA 
##          756          757          758          759          760 
## 6.571230e-01 5.021222e-01 3.131904e-01 5.618167e-01 2.144142e-02 
##          761          762          763          764          765 
## 4.763683e-01 5.617280e-01 2.349415e-01 6.881400e-01 2.925535e-01 
##          766          767          768          769          770 
## 4.467254e-01 5.931898e-01 4.134228e-01           NA 6.729546e-01 
##          771          772          773          774          775 
##           NA 7.408193e-01           NA           NA 6.968085e-01 
##          776          777          778          779          780 
## 3.785143e-01           NA 7.019087e-01 7.353678e-01           NA 
##          781          782          783          784          785 
## 3.910755e-01 5.961175e-01 6.528857e-01           NA           NA 
##          786          787          788          789          790 
## 5.252250e-01 3.712058e-01 5.791418e-09           NA           NA 
##          791          792          793          794          795 
## 6.096194e-02           NA 6.698581e-01 5.589857e-01 4.387103e-01 
##          796          797          798          799          800 
## 2.089913e-01 3.988688e-01 1.614656e-01 5.904295e-01 7.202046e-01 
##          801          802          803          804          805 
## 4.725376e-01 6.996235e-01 3.721241e-01 3.679472e-01 3.128860e-01 
##          806          807          808          809          810 
##           NA 4.676536e-01 2.220446e-16           NA 5.941186e-01 
##          811          812          813          814          815 
##           NA 6.924921e-01 7.062795e-01 1.060724e-13 5.536486e-01 
##          816          817          818          819          820 
## 3.688157e-01 2.302032e-01 6.372440e-01 1.931517e-01 2.431866e-01 
##          821          822          823          824          825 
## 6.323535e-01 6.699509e-01 2.069113e-01           NA           NA 
##          826          827          828          829          830 
## 4.301417e-01 6.295651e-01           NA 1.104863e-01 6.651243e-01 
##          831          832          833          834          835 
## 2.181554e-01 4.577488e-01 3.870070e-01 1.607516e-05 6.774963e-01 
##          836          837          838          839          840 
## 7.138792e-01           NA 7.177858e-01 3.007239e-01           NA 
##          841          842          843          844          845 
## 5.962608e-01 4.308739e-01 6.073188e-01           NA 2.757494e-01 
##          846          847          848          849          850 
##           NA 3.415551e-01 3.034519e-01 2.524053e-01           NA 
##          851          852          853          854          855 
##           NA 6.919305e-01 5.285844e-01 5.978518e-01           NA 
##          856          857          858          859          860 
## 3.039719e-01 1.646278e-01 3.655866e-01 5.559690e-01           NA 
##          861          862          863          864          865 
## 4.771862e-01           NA 5.253471e-01 7.023748e-01 6.714276e-01 
##          866          867          868          869          870 
## 6.575564e-01 7.138792e-01 6.602102e-01           NA 3.247216e-01 
##          871          872          873          874          875 
## 6.384885e-01 4.630591e-01           NA 4.276437e-01           NA 
##          876          877          878          879          880 
## 5.865779e-02           NA 7.820417e-02 5.908648e-01 5.579492e-01 
##          881          882          883          884          885 
##           NA           NA 6.301748e-01           NA 6.427515e-02 
##          886          887          888          889          890 
## 3.367295e-01 4.179308e-02 7.073340e-01 7.134167e-01 6.962314e-01 
##          891          892          893          894          895 
## 3.304944e-01 4.354637e-01 6.575354e-01 5.788447e-01           NA 
##          896          897          898          899          900 
## 4.533646e-01 2.820996e-01 4.442899e-03 3.784481e-01 2.516312e-01 
##          901          902          903          904          905 
## 5.062237e-01 6.764785e-01           NA 3.464681e-01 6.791029e-01 
##          906          907          908          909          910 
##           NA           NA 6.071327e-02 6.726286e-01           NA 
##          911          912          913          914          915 
## 4.781298e-01 9.333978e-02 2.478837e-01 6.172971e-01 5.134760e-01 
##          916          917          918          919          920 
## 5.091720e-01 6.262974e-01 3.249212e-01 5.668877e-01 7.015864e-01 
##          921          922          923          924          925 
##           NA 4.319417e-01           NA 6.767003e-01 6.470882e-01 
##          926          927          928          929          930 
## 5.586741e-01 6.758296e-01 7.366216e-01 2.494023e-01 1.923927e-01 
##          931          932          933          934          935 
## 6.230606e-01 7.027138e-01           NA 5.905231e-01 7.269442e-01 
##          936          937          938          939          940 
## 6.778967e-01 7.109915e-01           NA 7.040429e-01 6.139923e-01 
##          941          942          943          944          945 
## 6.783122e-01           NA 7.002705e-01           NA 2.363663e-01 
##          946          947          948          949          950 
## 3.150306e-01           NA 1.073839e-01 4.679830e-01           NA 
##          951          952          953          954          955 
## 5.854212e-01 7.189379e-01 6.092954e-01 6.778584e-01 5.478745e-01 
##          956          957          958          959          960 
## 6.130210e-01           NA 6.063916e-01 3.122926e-01 7.248873e-01 
##          961          962          963          964          965 
## 2.732533e-01 2.696661e-06 7.295534e-01 6.547555e-01           NA 
##          966          967          968          969          970 
## 2.506742e-01           NA           NA 4.838598e-01 2.431556e-02 
##          971          972          973          974          975 
## 5.697999e-01 6.753800e-02 3.805832e-01 5.565472e-01 6.978131e-01 
##          976          977          978          979          980 
## 3.186438e-01 1.870058e-01 2.220446e-16 2.333527e-01 1.860798e-01 
##          981          982          983          984          985 
## 6.416741e-01 5.915021e-01           NA 1.711361e-01           NA 
##          986          987          988          989          990 
## 6.317403e-01 1.152774e-01 4.797320e-01 6.870416e-01 3.125911e-01 
##          991          992          993          994          995 
## 1.038767e-01           NA 5.666166e-01 6.871546e-01 6.103164e-01 
##          996          997          998          999         1000 
## 2.837045e-01 1.608226e-01           NA           NA 6.254636e-01 
##         1001         1002         1003         1004         1005 
## 7.106535e-01           NA 5.627953e-01 5.241278e-01 5.064957e-01 
##         1006         1007         1008         1009         1010 
## 4.572275e-01 7.225683e-01 5.602337e-01 5.116449e-01           NA 
##         1011         1012         1013         1014         1015 
##           NA 7.629451e-01 7.917376e-01 5.895119e-01 8.972415e-02 
##         1016         1017         1018         1019         1020 
## 3.735916e-01 1.597668e-01 4.319053e-01 6.287596e-01 4.112370e-01 
##         1021         1022         1023         1024         1025 
## 3.570694e-01 5.398953e-01 5.779457e-01           NA 7.061924e-01 
##         1026         1027         1028         1029         1030 
## 4.428144e-01 7.131970e-01 7.225287e-01 6.308381e-01 3.321972e-01 
##         1031         1032         1033         1034         1035 
## 2.082420e-01 6.458059e-02 6.453977e-01 6.592412e-01 6.925544e-01 
##         1036         1037         1038         1039         1040 
## 5.527493e-01 6.711723e-01 6.159929e-01 7.174029e-01 7.056014e-01 
##         1041         1042         1043         1044         1045 
## 5.973378e-01 6.590581e-01           NA 3.287593e-01 6.924498e-01 
##         1046         1047         1048         1049         1050 
## 6.715510e-01 7.381624e-01 4.667224e-01 6.083784e-01           NA 
##         1051         1052         1053         1054         1055 
## 3.300555e-01 5.164398e-01 3.436435e-01 8.012265e-02 6.071295e-01 
##         1056         1057         1058         1059         1060 
##           NA 6.645189e-01 6.771798e-01 5.483830e-01           NA 
##         1061         1062         1063         1064         1065 
## 3.798131e-01 7.221752e-01 6.338193e-01 7.132712e-01 5.721656e-01 
##         1066         1067         1068         1069         1070 
## 2.220446e-16 7.064444e-01 9.861610e-02 6.208667e-01 6.423263e-01 
##         1071         1072         1073         1074         1075 
## 5.654871e-01 5.349435e-01 4.706817e-01 4.770416e-01 4.920340e-01 
##         1076         1077         1078         1079         1080 
## 5.501258e-01 6.944317e-01 3.095405e-01 4.825072e-01 6.795331e-01 
##         1081         1082         1083         1084         1085 
## 7.081662e-01 7.210499e-01 5.951393e-01 5.993289e-01 2.284197e-01 
##         1086         1087         1088         1089         1090 
## 8.968314e-02           NA           NA 6.729215e-01 7.140078e-01 
##         1091         1092         1093         1094         1095 
## 2.285554e-01 9.688832e-02 2.942303e-01 2.035922e-01 6.275685e-01 
##         1096         1097         1098         1099         1100 
## 6.629121e-01 3.857656e-01 3.779734e-01 3.484893e-01 6.443684e-01 
##         1101         1102         1103         1104         1105 
## 4.136206e-01 5.956623e-01 3.282443e-01 1.609592e-01 3.988126e-01 
##         1106         1107         1108         1109         1110 
## 6.736485e-02 2.639141e-01 3.249289e-01 6.140814e-01 7.489013e-01 
##         1111         1112         1113         1114         1115 
## 4.466927e-01 5.756190e-01           NA 2.702769e-01 1.272842e-01 
##         1116         1117         1118         1119         1120 
## 5.765878e-01 6.873980e-01 2.110195e-01 4.744166e-01 7.519279e-01 
##         1121         1122         1123         1124         1125 
##           NA           NA 1.610449e-01 1.391823e-01 7.010973e-01 
##         1126         1127         1128         1129         1130 
## 3.319358e-01           NA 7.007796e-01 6.955594e-01 6.055309e-01 
##         1131         1132         1133         1134         1135 
## 2.451761e-01 2.892664e-01           NA 3.413628e-01 5.058800e-01 
##         1136         1137         1138         1139         1140 
## 4.249526e-01 7.466367e-01 6.041725e-01 4.224723e-01 1.854127e-01 
##         1141         1142         1143         1144         1145 
## 6.558307e-01           NA 2.550941e-01 3.667152e-01 3.833238e-01 
##         1146         1147         1148         1149         1150 
## 6.074189e-01 7.187750e-01 1.870498e-07 3.642070e-01           NA 
##         1151         1152         1153         1154         1155 
## 3.261051e-01 4.032323e-01           NA 3.365112e-01 1.745487e-01 
##         1156         1157         1158         1159         1160 
## 6.900895e-01 4.727789e-01 6.709671e-01 4.191991e-01 3.810511e-01 
##         1161         1162         1163         1164         1165 
## 6.916718e-01           NA 2.572108e-02           NA 6.464598e-01 
##         1166         1167         1168         1169         1170 
## 6.979341e-01           NA 6.790672e-01 3.337912e-01           NA 
##         1171         1172         1173         1174         1175 
## 6.938274e-01 2.855481e-01 5.496579e-01 7.815621e-01 4.429852e-01 
##         1176         1177         1178         1179         1180 
##           NA 6.623049e-03 2.142313e-01 5.752874e-01 1.428517e-02 
##         1181         1182         1183         1184         1185 
##           NA 1.694745e-01           NA 5.703347e-01 3.183813e-01 
##         1186         1187         1188         1189         1190 
## 6.891702e-01           NA 5.767328e-01 2.013542e-02 4.810630e-01 
##         1191         1192         1193         1194         1195 
## 3.423293e-01 6.523065e-01 6.904387e-01           NA 6.570019e-01 
##         1196         1197         1198         1199         1200 
## 4.752634e-01 3.529390e-01 3.656350e-01 6.800736e-01           NA 
##         1201         1202         1203         1204         1205 
## 3.796165e-01           NA 6.767057e-01 5.843558e-01 3.586220e-01 
##         1206         1207         1208         1209         1210 
## 7.355720e-01 7.563520e-01 3.272571e-01 6.504305e-01 4.757366e-01 
##         1211         1212         1213         1214         1215 
## 6.873105e-01 5.550031e-01 4.059645e-01 6.775985e-01 7.021382e-01 
##         1216         1217         1218         1219         1220 
## 8.161442e-02 6.834204e-01 2.679061e-01 6.842073e-01 7.067488e-01 
##         1221         1222         1223         1224         1225 
## 7.128102e-01 5.678159e-01 6.531551e-01           NA 6.851268e-01 
##         1226         1227         1228         1229         1230 
## 4.233511e-01           NA           NA 5.012101e-01           NA 
##         1231         1232         1233         1234         1235 
## 6.736450e-01           NA 2.353522e-01 4.846309e-01           NA 
##         1236         1237         1238         1239         1240 
## 6.321387e-01 5.825801e-01 7.777718e-01 7.193902e-01 7.070946e-01 
##         1241         1242         1243         1244         1245 
## 3.147964e-01 2.987883e-01 1.645096e-01 5.636249e-01           NA 
##         1246         1247         1248         1249         1250 
## 6.625287e-01           NA 7.082894e-01 5.831565e-01           NA 
##         1251         1252         1253         1254         1255 
##           NA 4.389842e-01 6.725362e-01 5.585969e-01 2.649512e-01 
##         1256         1257         1258         1259         1260 
## 6.314389e-01 6.255736e-06 5.678740e-01 1.692227e-01 2.688460e-01 
##         1261         1262         1263         1264         1265 
## 5.579327e-01 6.004379e-01 5.980123e-01 6.743219e-01 6.083838e-01 
##         1266         1267         1268         1269         1270 
##           NA 7.312376e-01           NA 5.268276e-01           NA 
##         1271         1272         1273         1274         1275 
## 6.698968e-01 3.150859e-01 7.306663e-01 6.512815e-01 6.725362e-01 
##         1276         1277         1278         1279         1280 
## 6.887903e-01           NA 7.829428e-02 1.689032e-01 3.185880e-01 
##         1281         1282         1283         1284         1285 
## 6.122300e-01 3.012564e-01 6.919803e-01 1.676837e-01 5.664418e-01 
##         1286         1287         1288         1289         1290 
## 7.456290e-01 6.786941e-10 4.624444e-01 6.017027e-01 2.582524e-01 
##         1291         1292         1293         1294         1295 
##           NA 5.906466e-01 5.239534e-01 5.922544e-01           NA 
##         1296         1297         1298         1299         1300 
## 4.322995e-01 2.540866e-01           NA 6.051482e-01 1.314524e-01 
##         1301         1302         1303         1304         1305 
## 5.618452e-01           NA 6.799239e-01           NA           NA 
##         1306         1307         1308         1309         1310 
##           NA 7.464536e-01 7.094572e-01 2.732531e-01 3.609124e-01 
##         1311         1312         1313         1314         1315 
## 6.783549e-01 2.094546e-01 9.913750e-03 6.226825e-01 6.002261e-01 
##         1316         1317         1318         1319         1320 
## 5.071548e-01           NA 2.862795e-01           NA 5.815106e-01 
##         1321         1322         1323         1324         1325 
##           NA           NA 6.922960e-01 2.299202e-01 1.130099e-01 
##         1326         1327         1328         1329         1330 
## 4.190618e-01 6.492383e-01 7.492959e-01 5.839479e-01 6.991548e-01 
##         1331         1332         1333         1334         1335 
## 1.183066e-01 6.198383e-01 7.096280e-01 6.726239e-01 7.142033e-01 
##         1336         1337         1338         1339         1340 
##           NA 4.272753e-01 7.407902e-01 2.812303e-01 6.824172e-01
confusion<-table(prob>0.5,claimants$ATTORNEY)
confusion
##        
##           0   1
##   FALSE 380 125
##   TRUE  198 393
# Model Accuracy 
Accuracy<-sum(diag(confusion)/sum(confusion))
Accuracy
## [1] 0.705292
# ROC Curve 
library(ROCR)
## Loading required package: gplots
## 
## Attaching package: 'gplots'
## The following object is masked from 'package:stats':
## 
##     lowess
rocrpred<-prediction(prob,claimants$ATTORNEY)
rocrperf<-performance(rocrpred,'tpr','fpr')
plot(rocrperf,colorize=T,text.adj=c(-0.2,1.7))

# More area under the ROC Curve better is the logistic regression model obtained