y       x1          x2       x3           x4
10.842366 3.167214 2.592302755 6.332213 -2.591058217
 5.405508 3.749182 0.891827635 7.499801 -0.893670072
 6.026758 2.283997 0.231269285 4.568913 -0.231557419
 8.144534 4.557894 1.424622017 9.114403 -1.424079691
 5.182490 4.360240 0.302830569 8.722211 -0.302053844
 6.580327 2.358027 1.459923968 4.716889 -1.461057923
 4.899020 3.819341 0.130395792 7.638573 -0.129548615
11.673617 2.242871 3.084225781 4.484538 -3.083354368
 7.536143 3.172317 0.668010039 6.344443 -0.668694843
 5.988776 3.858417 0.503344038 7.716377 -0.503320647
 4.837924 2.857066 0.142345962 5.712491 -0.142978426
 6.336354 3.653368 0.972157513 7.306209 -0.972832706
 6.146792 2.090437 1.018145587 4.180754 -1.020295870
12.447359 4.962560 3.570943793 9.927697 -3.569954776
 7.858160 2.307845 0.952818313 4.616159 -0.952699908
 7.804187 4.361639 1.115126210 8.722550 -1.116161003
 5.828372 2.499754 0.824928466 4.998323 -0.822869634
 3.821814 4.463768 0.395406041 8.928212 -0.395300377
 5.362047 2.393426 0.748863305 4.788152 -0.747962460
 8.009491 2.209953 0.947596678 4.420860 -0.949381247
 3.927450 4.722474 0.238395545 9.444426 -0.237378788
 4.118323 3.901403 0.006780454 7.803707 -0.006798445
 7.903787 3.659869 0.762393592 7.318881 -0.763080345
 7.099484 3.026259 1.451571453 6.052287 -1.449674529
 6.148108 4.478211 0.343579931 8.956261 -0.343888707
 7.821409 4.458542 1.400253950 8.917201 -1.400289436
 6.454159 3.705478 0.011321770 7.410163 -0.012099403
 7.148499 3.858820 1.710667530 7.716869 -1.712166546
 4.044247 4.492641 0.439612801 8.985261 -0.438846618
 4.856995 3.376501 0.002393960 6.751392 -0.002075491
 8.224802 2.259472 1.007533161 4.519764 -1.008264010
 6.665424 2.676433 0.731024755 5.351134 -0.731508667
 4.560771 3.581722 0.329459030 7.162830 -0.330862004
 6.265834 3.751672 0.285705417 7.504162 -0.285164811
 9.056535 3.620267 1.517803967 7.238940 -1.518633938
 7.155436 4.607045 1.087943748 9.213972 -1.088151795
 9.249643 4.448892 1.583617855 8.897905 -1.583009149
10.099942 4.329774 2.686009860 8.660582 -2.685373620
 7.779427 2.057069 0.635720722 4.112960 -0.635487010
 5.618742 3.306190 0.336705258 6.611583 -0.336331535