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st: regression model not working---missing some estimates for constant
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From |
"McClanahan, Wendy" <[email protected]> |
|
To |
<[email protected]> |
|
Subject |
st: regression model not working---missing some estimates for constant |
|
Date |
Wed, 25 Nov 2009 12:57:27 -0500 |
Hi,
I am creating propensity scores and having problems. I have attached
sample output below, but essentially, I am missing constant
estimates---why? I have also inserted the correlation matrix. Could be
obvious, but I can't seem to figure it out. Thanks in advance for your
help!
*******************************
The treatment is conditr
conditr | Freq. Percent Cum.
------------+-----------------------------------
0 | 168 45.28 45.28
1 | 203 54.72 100.00
------------+-----------------------------------
Total | 371 100.00
Estimation of the propensity score
Iteration 0: log likelihood = -254.90009
Iteration 1: log likelihood = -201.28862
Iteration 2: log likelihood = -196.28359
Iteration 3: log likelihood = -196.0512
Iteration 4: log likelihood = -196.01419
Iteration 5: log likelihood = -196.00366
Iteration 6: log likelihood = -196.0005
Iteration 7: log likelihood = -195.99952
Iteration 8: log likelihood = -195.9992
Iteration 9: log likelihood = -195.9991
Iteration 10: log likelihood = -195.99906
Iteration 11: log likelihood = -195.99905
Iteration 12: log likelihood = -195.99905
Iteration 13: log likelihood = -195.99905
Iteration 14: log likelihood = -195.99905
Iteration 15: log likelihood = -195.99905
Iteration 16: log likelihood = -195.99905
Iteration 17: log likelihood = -195.99905
Iteration 18: log likelihood = -195.99905
Probit regression Number of obs =
370
LR chi2(25) =
117.80
Prob > chi2 =
0.0000
Log likelihood = -195.99905 Pseudo R2 =
0.2311
------------------------------------------------------------------------
------
conditr | Coef. Std. Err. z P>|z| [95% Conf.
Interval]
-------------+----------------------------------------------------------
------
male | -.57645 .3347819 -1.72 0.085 -1.23261
.0797103
black | .0377613 .4611088 0.08 0.935 -.8659954
.941518
hispanic | .0660099 .4902179 0.13 0.893 -.8947995
1.026819
rage | -.2695737 .0687635 -3.92 0.000 -.4043476
-.1347998
indandatx | -.2326484 .2539289 -0.92 0.360 -.7303399
.2650432
rkillbeki | .107553 .0375467 2.86 0.004 .0339628
.1811433
misskillbeki | .1003631 .3335766 0.30 0.764 -.5534351
.7541614
rpriprobl | -.0007468 .0002065 -3.62 0.000 -.0011516
-.0003421
misspriprobl | -1.037051 .530192 -1.96 0.050 -2.076208
.0021063
prisentl | .0002695 .000188 1.43 0.152 -.000099
.0006381
npriarre | .1270843 .0902608 1.41 0.159 -.0498236
.3039923
rinevshot2 | .2943616 .2340221 1.26 0.208 -.1643133
.7530365
missinevsh~2 | -.3160241 .4485965 -0.70 0.481 -1.195257
.5632088
maxprop | -5.787291 1.387791 -4.17 0.000 -8.507312
-3.06727
inmaxvio | -6.148892 1.376489 -4.47 0.000 -8.846762
-3.451023
missrmaxpr~h | 1.317619 .6540418 2.01 0.044 .035721
2.599518
indrugmax | -6.115746 1.376529 -4.44 0.000 -8.813693
-3.417799
rinmenhea | .8249473 .6164444 1.34 0.181 -.3832616
2.033156
rinnochld | .4171485 .1449789 2.88 0.004 .1329951
.7013019
missinnochld | .726482 .492339 1.48 0.140 -.2384847
1.691449
rinchldli | -.2769224 .2119297 -1.31 0.191 -.6922969
.1384521
missinchldli | -.9036098 .5262739 -1.72 0.086 -1.935088
.1278681
rage1arre | .0514914 .0818908 0.63 0.529 -.1090117
.2119945
inusedrug | .2347136 .1733593 1.35 0.176 -.1050645
.5744916
missindrugus | .0797158 .7884321 0.10 0.919 -1.465583
1.625014
_cons | 10.97308 . . . .
.
------------------------------------------------------------------------
------
Note: 1 failure and 4 successes completely determined.
| conditr male black hispanic rage indand~x
misski~i rpripr~l missp~bl
-------------+----------------------------------------------------------
-----------------------
conditr | 1.0000
male | -0.0549 1.0000
black | -0.0521 -0.0273 1.0000
hispanic | 0.0564 0.0075 -0.8927 1.0000
rage | -0.3504 -0.0320 0.0376 -0.0339 1.0000
indandatx | -0.0398 0.0485 -0.0168 0.0207 0.0197 1.0000
misskillbeki | 0.0500 0.0615 0.0129 -0.0279 -0.0719 0.0398
1.0000
rpriprobl | -0.3120 0.0224 -0.0183 0.0464 0.4112 0.0697
-0.0195 1.0000
misspriprobl | 0.0457 -0.0299 -0.0685 -0.0030 -0.1135 -0.0076
-0.0096 -0.2101 1.0000
prisentl | -0.1699 0.0583 -0.0989 0.0958 0.4019 0.1491
0.0260 0.4842 -0.1422
npriarre | -0.1010 0.0546 -0.0680 0.0677 0.2817 0.0545
0.0235 0.4954 -0.2853
rinevshot2 | 0.0145 0.1042 0.0683 -0.0455 0.1144 -0.0744
0.1861 0.0905 0.0042
missinevsh~2 | -0.0782 0.0471 -0.0388 -0.0301 0.0261 0.0407
-0.0438 0.1714 0.0185
maxprop | 0.0570 0.0273 0.0146 0.0161 -0.0501 -0.0138
-0.0158 -0.0287 -0.0236
inmaxvio | -0.1008 -0.1372 -0.0357 -0.0287 0.1135 -0.0379
0.0162 0.1331 0.1519
missrmaxpr~h | 0.0774 -0.0606 -0.0892 0.0352 -0.0616 0.0228
0.0115 -0.1717 0.8175
indrugmax | 0.0407 0.1179 0.0146 0.0305 -0.0748 0.0397
0.0007 -0.1000 -0.1360
rinmenhea | 0.1088 -0.1047 -0.0218 0.0371 -0.0658 0.1228
0.0398 -0.0079 -0.0397
rinnochld | 0.1616 -0.1241 0.0227 0.0016 -0.0012 -0.0049
0.0528 -0.0108 -0.0897
missinnochld | -0.0194 0.0020 0.1165 -0.0993 0.0074 -0.0727
0.0510 -0.0205 0.0416
rinchldli | 0.0527 -0.2299 -0.0228 0.0380 0.0133 -0.0038
0.0985 0.0650 -0.0525
missinchldli | -0.0774 0.0751 0.1054 -0.0890 0.0357 -0.0972
0.0637 0.0398 0.0542
rage1arre | -0.1141 -0.0491 0.0860 -0.0644 0.5460 0.0182
-0.0791 -0.1008 -0.0323
inusedrug | 0.0838 0.1509 0.0357 -0.0602 0.0433 0.1183
0.0247 -0.0621 0.0385
missindrugus | 0.0219 0.0233 0.0410 -0.0366 -0.0309 -0.0301
-0.0216 -0.0441 -0.0227
| prisentl npriarre rinevs~2 missin~2 maxprop inmaxvio
missrm~h indrug~x rinmen~a
-------------+----------------------------------------------------------
-----------------------
prisentl | 1.0000
npriarre | 0.4485 1.0000
rinevshot2 | 0.0860 0.1425 1.0000
missinevsh~2 | -0.0092 0.0440 -0.0002 1.0000
maxprop | -0.0211 0.0972 -0.0039 -0.0681 1.0000
inmaxvio | 0.0500 -0.0587 0.0472 0.0551 -0.3844 1.0000
missrmaxpr~h | -0.1394 -0.3392 -0.0427 -0.0376 -0.0765 0.1990
1.0000
indrugmax | -0.0187 0.0041 -0.0522 -0.0059 -0.2722 -0.7557
-0.1504 1.0000
rinmenhea | -0.0328 -0.0284 0.0399 -0.0289 -0.0588 0.0475
-0.0325 -0.0051 1.0000
rinnochld | 0.0256 0.0351 -0.0563 -0.0265 -0.0013 0.0170
-0.0627 -0.0045 0.2079
missinnochld | -0.0813 -0.0503 -0.0068 0.0498 -0.0294 -0.0576
0.0318 0.0695 0.0121
rinchldli | 0.0788 -0.0440 -0.0708 -0.0313 -0.0165 0.0868
-0.0343 -0.0700 0.1951
missinchldli | -0.0160 -0.0155 0.0902 -0.0534 0.0146 -0.0195
0.0420 0.0188 -0.0460
rage1arre | -0.0621 -0.1244 -0.0547 -0.0223 -0.0404 0.0454
-0.0008 -0.0228 -0.0784
inusedrug | 0.0121 0.0338 0.0614 -0.0144 -0.1379 -0.1327
0.0438 0.2277 -0.0124
missindrugus | -0.0078 -0.0637 -0.0244 0.1536 0.0586 -0.0331
-0.0186 -0.0029 -0.0143
| rinnoc~d missin~d rinchl~i missi~li rage1a~e inused~g
missi~us
-------------+----------------------------------------------------------
-----
rinnochld | 1.0000
missinnochld | -0.0250 1.0000
rinchldli | 0.5416 0.0000 1.0000
missinchldli | 0.0462 0.7908 -0.0155 1.0000
rage1arre | 0.0199 -0.0094 -0.0198 -0.0317 1.0000
inusedrug | 0.0272 0.0168 0.0040 0.0137 0.0822 1.0000
missindrugus | -0.0105 -0.0283 -0.0307 -0.0264 0.0428 0.0588
1.0000
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