Current Versus Past DW-NOMINATE Scores
Updated 4 April 2008
House: 1 to 110 vs. 1 to 109 DW-NOMINATE ScalingsDimension 1 vs. Dimension 1 . regress dwnom1_110 dwnom1_109 Source | SS df MS Number of obs = 35739 -------------+------------------------------ F( 1, 35737) = . Model | 5293.98409 1 5293.98409 Prob > F = 0.0000 Residual | 4.92909738 35737 .000137927 R-squared = 0.9991 -------------+------------------------------ Adj R-squared = 0.9991 Total | 5298.91319 35738 .148271117 Root MSE = .01174 ------------------------------------------------------------------------------ dwnom1_110 | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- dwnom1_109 | .9887853 .0001596 6195.36 0.000 .9884725 .9890982 _cons | -.0015506 .0000622 -24.93 0.000 -.0016725 -.0014287 ------------------------------------------------------------------------------ Dimension 2 vs. Dimension 2 . regress dwnom2_110 dwnom2_109 Source | SS df MS Number of obs = 35739 -------------+------------------------------ F( 1, 35737) = . Model | 9070.91557 1 9070.91557 Prob > F = 0.0000 Residual | 25.0061005 35737 .000699726 R-squared = 0.9973 -------------+------------------------------ Adj R-squared = 0.9973 Total | 9095.92167 35738 .254516808 Root MSE = .02645 ------------------------------------------------------------------------------ dwnom2_110 | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- dwnom2_109 | .9875461 .0002743 3600.49 0.000 .9870085 .9880837 _cons | .002047 .00014 14.62 0.000 .0017725 .0023214 ------------------------------------------------------------------------------ House: 1 to 110 vs. 1 to 108 DW-NOMINATE Scalings Dimension 1 vs. Dimension 1 . regress dwnom1_110 dwnom1_108 Source | SS df MS Number of obs = 35300 -------------+------------------------------ F( 1, 35298) = . Model | 5174.85364 1 5174.85364 Prob > F = 0.0000 Residual | 12.4896386 35298 .000353834 R-squared = 0.9976 -------------+------------------------------ Adj R-squared = 0.9976 Total | 5187.34328 35299 .146954397 Root MSE = .01881 ------------------------------------------------------------------------------ dwnom1_110 | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- dwnom1_108 | .9737292 .0002546 3824.28 0.000 .9732301 .9742282 _cons | -.0016113 .0001002 -16.08 0.000 -.0018078 -.0014149 ------------------------------------------------------------------------------ Dimension 2 vs. Dimension 2 . regress dwnom2_110 dwnom2_108 Source | SS df MS Number of obs = 35300 -------------+------------------------------ F( 1, 35298) = . Model | 9000.41636 1 9000.41636 Prob > F = 0.0000 Residual | 35.7664665 35298 .001013272 R-squared = 0.9960 -------------+------------------------------ Adj R-squared = 0.9960 Total | 9036.18282 35299 .255989768 Root MSE = .03183 ------------------------------------------------------------------------------ dwnom2_110 | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- dwnom2_108 | .97049 .0003256 2980.36 0.000 .9698518 .9711283 _cons | .0047214 .0001695 27.85 0.000 .0043891 .0050536 ------------------------------------------------------------------------------ House: 1 to 110 vs. 1 to 107 DW-NOMINATE Scalings Dimension 1 vs. Dimension 1 . regress dwnom1_110 dwnom1_107 Source | SS df MS Number of obs = 34859 -------------+------------------------------ F( 1, 34857) = . Model | 5046.28388 1 5046.28388 Prob > F = 0.0000 Residual | 36.1590371 34857 .001037354 R-squared = 0.9929 -------------+------------------------------ Adj R-squared = 0.9929 Total | 5082.44292 34858 .145804203 Root MSE = .03221 ------------------------------------------------------------------------------ dwnom1_110 | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- dwnom1_107 | .9413245 .0004268 2205.58 0.000 .9404879 .942161 _cons | -.0003104 .0001727 -1.80 0.072 -.0006488 .000028 ------------------------------------------------------------------------------ Dimension 2 vs. Dimension 2 . regress dwnom2_110 dwnom2_107 Source | SS df MS Number of obs = 34859 -------------+------------------------------ F( 1, 34857) = . Model | 8848.88774 1 8848.88774 Prob > F = 0.0000 Residual | 127.3579 34857 .003653725 R-squared = 0.9858 -------------+------------------------------ Adj R-squared = 0.9858 Total | 8976.24564 34858 .257508912 Root MSE = .06045 ------------------------------------------------------------------------------ dwnom2_110 | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- dwnom2_107 | .9621936 .0006183 1556.24 0.000 .9609817 .9634054 _cons | .0066013 .0003239 20.38 0.000 .0059664 .0072362 ------------------------------------------------------------------------------ House: 1 to 110 vs. 1 to 106 DW-NOMINATE Scalings Dimension 1 vs. Dimension 1 . regress dwnom1_110 dwnom1_106 Source | SS df MS Number of obs = 34417 -------------+------------------------------ F( 1, 34415) = . Model | 4905.26975 1 4905.26975 Prob > F = 0.0000 Residual | 78.8835188 34415 .002292126 R-squared = 0.9842 -------------+------------------------------ Adj R-squared = 0.9842 Total | 4984.15326 34416 .144820818 Root MSE = .04788 ------------------------------------------------------------------------------ dwnom1_110 | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- dwnom1_106 | .9217751 .0006301 1462.89 0.000 .9205401 .9230101 _cons | .0008349 .0002583 3.23 0.001 .0003287 .0013411 ------------------------------------------------------------------------------ Dimension 2 vs. Dimension 2 . regress dwnom2_110 dwnom2_106 Source | SS df MS Number of obs = 34417 -------------+------------------------------ F( 1, 34415) = . Model | 8645.31302 1 8645.31302 Prob > F = 0.0000 Residual | 265.18123 34415 .007705397 R-squared = 0.9702 -------------+------------------------------ Adj R-squared = 0.9702 Total | 8910.49425 34416 .258905574 Root MSE = .08778 ------------------------------------------------------------------------------ dwnom2_110 | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- dwnom2_106 | .9165769 .0008653 1059.24 0.000 .9148808 .918273 _cons | .0122293 .0004733 25.84 0.000 .0113016 .0131569 ------------------------------------------------------------------------------ House: 1 to 110 vs. 1 to 105 DW-NOMINATE Scalings Dimension 1 vs. Dimension 1 . regress dwnom1_110 dwnom1_105 Source | SS df MS Number of obs = 33977 -------------+------------------------------ F( 1, 33975) = . Model | 4638.491 1 4638.491 Prob > F = 0.0000 Residual | 255.539719 33975 .007521405 R-squared = 0.9478 -------------+------------------------------ Adj R-squared = 0.9478 Total | 4894.03072 33976 .144043758 Root MSE = .08673 ------------------------------------------------------------------------------ dwnom1_110 | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- dwnom1_105 | 1.001759 .0012756 785.31 0.000 .9992588 1.004259 _cons | -.0000325 .0004709 -0.07 0.945 -.0009554 .0008905 ------------------------------------------------------------------------------ Dimension 2 vs. Dimension 2 . regress dwnom2_110 dwnom2_105 Source | SS df MS Number of obs = 33977 -------------+------------------------------ F( 1, 33975) = . Model | 7906.39612 1 7906.39612 Prob > F = 0.0000 Residual | 933.617206 33975 .027479535 R-squared = 0.8944 -------------+------------------------------ Adj R-squared = 0.8944 Total | 8840.01332 33976 .260184051 Root MSE = .16577 ------------------------------------------------------------------------------ dwnom2_110 | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- dwnom2_105 | .9202791 .0017157 536.39 0.000 .9169163 .9236419 _cons | .0179515 .0008994 19.96 0.000 .0161886 .0197143 ------------------------------------------------------------------------------ Senate: 1 to 110 vs. 1 to 109 DW-NOMINATE Scalings Dimension 1 vs. Dimension 1 . regress dwnom1_110 dwnom1_109 Source | SS df MS Number of obs = 8644 -------------+------------------------------ F( 1, 8642) = . Model | 1344.02806 1 1344.02806 Prob > F = 0.0000 Residual | 1.89297179 8642 .000219043 R-squared = 0.9986 -------------+------------------------------ Adj R-squared = 0.9986 Total | 1345.92103 8643 .155723826 Root MSE = .0148 ------------------------------------------------------------------------------ dwnom1_110 | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- dwnom1_109 | .9872714 .0003986 2477.08 0.000 .9864901 .9880527 _cons | -.0025939 .0001592 -16.29 0.000 -.002906 -.0022818 ------------------------------------------------------------------------------ Dimension 2 vs. Dimension 2 . regress dwnom2_110 dwnom2_109 Source | SS df MS Number of obs = 8644 -------------+------------------------------ F( 1, 8642) = . Model | 2446.58379 1 2446.58379 Prob > F = 0.0000 Residual | 4.8294209 8642 .000558831 R-squared = 0.9980 -------------+------------------------------ Adj R-squared = 0.9980 Total | 2451.41321 8643 .283629899 Root MSE = .02364 ------------------------------------------------------------------------------ dwnom2_110 | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- dwnom2_109 | .9767474 .0004668 2092.38 0.000 .9758323 .9776624 _cons | -.0017257 .0002545 -6.78 0.000 -.0022245 -.0012268 ------------------------------------------------------------------------------ Senate: 1 to 110 vs. 1 to 108 DW-NOMINATE Scalings Dimension 1 vs. Dimension 1 . regress dwnom1_110 dwnom1_108 Source | SS df MS Number of obs = 8542 -------------+------------------------------ F( 1, 8540) = . Model | 1313.50672 1 1313.50672 Prob > F = 0.0000 Residual | 10.5118164 8540 .001230892 R-squared = 0.9921 -------------+------------------------------ Adj R-squared = 0.9921 Total | 1324.01854 8541 .155019147 Root MSE = .03508 ------------------------------------------------------------------------------ dwnom1_110 | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- dwnom1_108 | .9708836 .0009399 1033.01 0.000 .9690412 .9727259 _cons | -.0045223 .0003796 -11.91 0.000 -.0052665 -.0037781 ------------------------------------------------------------------------------ Dimension 2 vs. Dimension 2 . regress dwnom2_110 dwnom2_108 Source | SS df MS Number of obs = 8542 -------------+------------------------------ F( 1, 8540) = . Model | 2410.33922 1 2410.33922 Prob > F = 0.0000 Residual | 24.1712731 8540 .00283036 R-squared = 0.9901 -------------+------------------------------ Adj R-squared = 0.9901 Total | 2434.51049 8541 .28503811 Root MSE = .0532 ------------------------------------------------------------------------------ dwnom2_110 | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- dwnom2_108 | .9447639 .0010238 922.82 0.000 .942757 .9467707 _cons | -.0014085 .0005761 -2.44 0.015 -.0025378 -.0002791 ------------------------------------------------------------------------------ Senate: 1 to 110 vs. 1 to 107 DW-NOMINATE Scalings Dimension 1 vs. Dimension 1 . regress dwnom1_110 dwnom1_107 Source | SS df MS Number of obs = 8441 -------------+------------------------------ F( 1, 8439) = . Model | 1284.11775 1 1284.11775 Prob > F = 0.0000 Residual | 21.0199788 8439 .002490814 R-squared = 0.9839 -------------+------------------------------ Adj R-squared = 0.9839 Total | 1305.13773 8440 .154637171 Root MSE = .04991 ------------------------------------------------------------------------------ dwnom1_110 | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- dwnom1_107 | .9524841 .0013266 718.01 0.000 .9498837 .9550845 _cons | -.0061236 .0005432 -11.27 0.000 -.0071885 -.0050587 ------------------------------------------------------------------------------ Dimension 2 vs. Dimension 2 . regress dwnom2_110 dwnom2_107 Source | SS df MS Number of obs = 8441 -------------+------------------------------ F( 1, 8439) = . Model | 2358.97025 1 2358.97025 Prob > F = 0.0000 Residual | 56.9215437 8439 .006745058 R-squared = 0.9764 -------------+------------------------------ Adj R-squared = 0.9764 Total | 2415.89179 8440 .286243103 Root MSE = .08213 ------------------------------------------------------------------------------ dwnom2_110 | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- dwnom2_107 | .9173492 .0015512 591.38 0.000 .9143085 .92039 _cons | .0010107 .0008949 1.13 0.259 -.0007435 .0027649 ------------------------------------------------------------------------------ Senate: 1 to 110 vs. 1 to 106 DW-NOMINATE Scalings Dimension 1 vs. Dimension 1 . regress dwnom1_110 dwnom1_106 Source | SS df MS Number of obs = 8339 -------------+------------------------------ F( 1, 8337) = . Model | 1252.34478 1 1252.34478 Prob > F = 0.0000 Residual | 33.0613345 8337 .003965615 R-squared = 0.9743 -------------+------------------------------ Adj R-squared = 0.9743 Total | 1285.40611 8338 .154162402 Root MSE = .06297 ------------------------------------------------------------------------------ dwnom1_110 | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- dwnom1_106 | .9527667 .0016954 561.96 0.000 .9494432 .9560902 _cons | -.0042454 .0006897 -6.16 0.000 -.0055973 -.0028934 ------------------------------------------------------------------------------ Dimension 2 vs. Dimension 2 . regress dwnom2_110 dwnom2_106 Source | SS df MS Number of obs = 8339 -------------+------------------------------ F( 1, 8337) = . Model | 2309.77911 1 2309.77911 Prob > F = 0.0000 Residual | 87.1617031 8337 .010454804 R-squared = 0.9636 -------------+------------------------------ Adj R-squared = 0.9636 Total | 2396.94081 8338 .287471913 Root MSE = .10225 ------------------------------------------------------------------------------ dwnom2_110 | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- dwnom2_106 | .8712982 .0018537 470.03 0.000 .8676645 .8749319 _cons | .0031537 .0011211 2.81 0.005 .000956 .0053513 ------------------------------------------------------------------------------ Senate: 1 to 110 vs. 1 to 105 DW-NOMINATE Scalings Dimension 1 vs. Dimension 1 . regress dwnom1_110 dwnom1_105 Source | SS df MS Number of obs = 8236 -------------+------------------------------ F( 1, 8234) = . Model | 1181.92211 1 1181.92211 Prob > F = 0.0000 Residual | 84.7414038 8234 .010291645 R-squared = 0.9331 -------------+------------------------------ Adj R-squared = 0.9331 Total | 1266.66351 8235 .153814634 Root MSE = .10145 ------------------------------------------------------------------------------ dwnom1_110 | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- dwnom1_105 | .9630757 .0028419 338.88 0.000 .9575049 .9686466 _cons | -.0084485 .0011179 -7.56 0.000 -.0106398 -.0062572 ------------------------------------------------------------------------------ Dimension 2 vs. Dimension 2 . regress dwnom2_110 dwnom2_105 Source | SS df MS Number of obs = 8236 -------------+------------------------------ F( 1, 8234) =77737.32 Model | 2150.3867 1 2150.3867 Prob > F = 0.0000 Residual | 227.770713 8234 .027662219 R-squared = 0.9042 -------------+------------------------------ Adj R-squared = 0.9042 Total | 2378.15742 8235 .288786572 Root MSE = .16632 ------------------------------------------------------------------------------ dwnom2_110 | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- dwnom2_105 | .8788631 .0031521 278.81 0.000 .8726841 .8850421 _cons | -.0008779 .0018343 -0.48 0.632 -.0044735 .0027178 ------------------------------------------------------------------------------House Correlation Matrix All DW-NOMINATE Scalings
. pwcorr dwnom1_110 dwnom2_110 dwnom1_109 dwnom2_109 dwnom1_108 dwnom2_108 dwnom1_107 dwnom2_107 dwnom1_106 dwnom2_106 dwnom1_105 dwnom2_105, sig | dwnom1~0 dwnom2~0 dwnom1~9 dwnom2~9 dwnom1~8 dwnom2~8 dwnom1~7 dwnom2~7 dwnom1~6 dwnom2~6 dwnom1~5 dwnom2~5 -------------+------------------------------------------------------------------------------------------------------------ dwnom1_110 | 1.0000 | | dwnom2_110 | -0.0844 1.0000 | 0.0000 | dwnom1_109 | 0.9995 -0.0871 1.0000 | 0.0000 0.0000 | dwnom2_109 | -0.0846 0.9986 -0.0865 1.0000 | 0.0000 0.0000 0.0000 | dwnom1_108 | 0.9988 -0.0896 0.9995 -0.0886 1.0000 | 0.0000 0.0000 0.0000 0.0000 | dwnom2_108 | -0.0811 0.9980 -0.0831 0.9984 -0.0851 1.0000 | 0.0000 0.0000 0.0000 0.0000 0.0000 | dwnom1_107 | 0.9964 -0.0987 0.9970 -0.0974 0.9973 -0.0948 1.0000 | 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 | dwnom2_107 | -0.0632 0.9929 -0.0653 0.9937 -0.0674 0.9942 -0.0755 1.0000 | 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 | dwnom1_106 | 0.9921 -0.1048 0.9926 -0.1035 0.9928 -0.1015 0.9983 -0.0811 1.0000 | 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 | dwnom2_106 | -0.0444 0.9850 -0.0465 0.9863 -0.0485 0.9876 -0.0564 0.9962 -0.0615 1.0000 | 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 | dwnom1_105 | 0.9735 -0.1039 0.9744 -0.1024 0.9753 -0.1006 0.9843 -0.0799 0.9895 -0.0603 1.0000 | 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 | dwnom2_105 | -0.0005 0.9457 -0.0023 0.9474 -0.0041 0.9494 -0.0098 0.9649 -0.0128 0.9734 -0.0098 1.0000 | 0.9333 0.0000 0.6742 0.0000 0.4487 0.0000 0.0721 0.0000 0.0186 0.0000 0.0720 |Senate Correlation Matrix All DW-NOMINATE Scalings
. pwcorr dwnom1_110 dwnom2_110 dwnom1_109 dwnom2_109 dwnom1_108 dwnom2_108 dwnom1_107 dwnom2_107 dwnom1_106 dwnom2_106 dwnom1_105 dwnom2_105, sig | dwnom1~0 dwnom2~0 dwnom1~9 dwnom2~9 dwnom1~8 dwnom2~8 dwnom1~7 dwnom2~7 dwnom1~6 dwnom2~6 dwnom1~5 dwnom2~5 -------------+------------------------------------------------------------------------------------------------------------ dwnom1_110 | 1.0000 | | dwnom2_110 | -0.0395 1.0000 | 0.0002 | dwnom1_109 | 0.9993 -0.0382 1.0000 | 0.0000 0.0004 | dwnom2_109 | -0.0420 0.9990 -0.0423 1.0000 | 0.0001 0.0000 0.0001 | dwnom1_108 | 0.9960 -0.0370 0.9981 -0.0412 1.0000 | 0.0000 0.0006 0.0000 0.0001 | dwnom2_108 | -0.0457 0.9950 -0.0461 0.9975 -0.0459 1.0000 | 0.0000 0.0000 0.0000 0.0000 0.0000 | dwnom1_107 | 0.9919 -0.0298 0.9944 -0.0348 0.9966 -0.0406 1.0000 | 0.0000 0.0061 0.0000 0.0014 0.0000 0.0002 | dwnom2_107 | -0.0383 0.9881 -0.0377 0.9910 -0.0363 0.9943 -0.0320 1.0000 | 0.0004 0.0000 0.0005 0.0000 0.0009 0.0000 0.0033 | dwnom1_106 | 0.9871 -0.0189 0.9891 -0.0245 0.9899 -0.0317 0.9971 -0.0229 1.0000 | 0.0000 0.0843 0.0000 0.0254 0.0000 0.0038 0.0000 0.0369 | dwnom2_106 | -0.0375 0.9816 -0.0364 0.9845 -0.0344 0.9879 -0.0300 0.9962 -0.0231 1.0000 | 0.0006 0.0000 0.0009 0.0000 0.0017 0.0000 0.0061 0.0000 0.0352 | dwnom1_105 | 0.9660 -0.0286 0.9685 -0.0346 0.9705 -0.0428 0.9836 -0.0331 0.9898 -0.0335 1.0000 | 0.0000 0.0095 0.0000 0.0017 0.0000 0.0001 0.0000 0.0027 0.0000 0.0023 | dwnom2_105 | -0.0164 0.9509 -0.0144 0.9534 -0.0111 0.9563 -0.0058 0.9725 0.0017 0.9764 -0.0085 1.0000 | 0.1378 0.0000 0.1925 0.0000 0.3133 0.0000 0.6018 0.0000 0.8802 0.0000 0.4410 |