Reprinted from Journal of Biomechanics 29, P.F. Vint & R.N. Hinrichs, Endpoint error in smoothing and differentiating raw kinematic data: An evaluation of four popular methods, pp. 1637-1642, Copyright (1996), with permission from Elsevier Science. Time Raw Noisy Accel ------------------------------------------ 0.0000 0.1517 0.1458 0.0000 0.0201 0.1492 0.1509 0.0000 0.0402 0.1524 0.1575 3.0221 0.0603 0.1576 0.1427 7.1397 0.0804 0.1635 0.1714 10.0329 0.1005 0.1744 0.1731 11.2559 0.1206 0.1937 0.1930 10.3661 0.1407 0.2126 0.2097 8.3941 0.1608 0.2288 0.2356 5.4586 0.1809 0.2552 0.2637 3.9121 0.2010 0.2833 0.2816 6.9002 0.2211 0.3125 0.3121 11.8463 0.2412 0.3463 0.3480 13.1885 0.2613 0.3879 0.3904 13.6488 0.2814 0.4324 0.4242 14.0208 0.3015 0.4825 0.4815 12.0132 0.3216 0.5358 0.5402 5.5654 0.3417 0.5928 0.5954 0.0069 0.3618 0.6446 0.6370 0.3641 0.3819 0.6966 0.6885 1.5719 0.4020 0.7530 0.7427 2.1317 0.4221 0.8116 0.8050 3.7727 0.4422 0.8639 0.8624 6.7221 0.4623 0.9251 0.9323 9.1319 0.4824 0.9865 0.9806 8.2096 0.5025 1.0494 1.0501 6.7036 0.5226 1.1175 1.1193 6.9231 0.5427 1.1893 1.1841 7.8175 0.5628 1.2610 1.2583 5.9401 0.5829 1.3333 1.3459 2.2294 0.6030 1.4078 1.4078 -0.8388 0.6231 1.4778 1.4811 -3.3770 0.6432 1.5505 1.5445 -4.3438 0.6633 1.6178 1.6084 -4.5612 0.6834 1.6855 1.6825 -4.7513 0.7035 1.7481 1.7430 -5.1941 0.7236 1.8074 1.8056 -5.4091 0.7437 1.8658 1.8578 -5.8552 0.7638 1.9245 1.9353 -6.8748 0.7839 1.9792 1.9800 -8.7070 0.8040 2.0339 2.0374 -12.7041 0.8241 2.0724 2.0685 -14.2113 0.8442 2.1126 2.1042 -15.7212 0.8643 2.1452 2.1454 -16.8054 0.8844 2.1701 2.1682 -17.0763 0.9045 2.1844 2.1889 -16.8098 0.9246 2.2012 2.2148 -17.3823 0.9447 2.2047 2.2083 -18.0002 0.9648 2.2021 2.2075 -16.0863 0.9849 2.1940 2.1963 -13.5466 1.0050 2.1824 2.1792 -12.8567 1.0251 2.1634 2.1676 -11.7014 1.0452 2.1433 2.1447 -12.5057 1.0653 2.1116 2.1102 -12.3400 1.0854 2.0795 2.0811 -12.0316 1.1055 2.0427 2.0507 -12.0719 1.1256 1.9985 2.0074 -11.6754 1.1457 1.9519 1.9517 -11.5053 1.1658 1.9000 1.8948 -11.6477 1.1859 1.8442 1.8380 -11.0592 1.2060 1.7810 1.7831 -9.0157 1.2261 1.7189 1.7264 -7.0292 1.2462 1.6515 1.6599 -5.9946 1.2663 1.5813 1.5845 -4.8061 1.2864 1.5132 1.5161 -3.1786 1.3065 1.4401 1.4510 -1.5880 1.3266 1.3710 1.3744 0.1245 1.3467 1.2987 1.2980 2.6354 1.3668 1.2265 1.2351 5.0069 1.3869 1.1594 1.1523 5.4394 1.4070 1.0909 1.0863 5.2150 1.4271 1.0255 1.0287 6.0321 1.4472 0.9630 0.9668 7.6032 1.4673 0.9033 0.9019 6.5306 1.4874 0.8488 0.8474 6.0740 1.5075 0.7928 0.7965 5.6382 1.5276 0.7359 0.7364 6.8504 1.5477 0.6853 0.6893 7.3479 1.5678 0.6370 0.6387 9.3425 1.5879 0.5913 0.5947 9.8927 1.6080 0.5533 0.5533 8.7372 1.6281 0.5207 0.5216 8.0801 1.6482 0.4856 0.4897 8.6690 1.6683 0.4531 0.4536 8.7642 1.6884 0.4276 0.4250 7.9082 1.7085 0.4055 0.4077 7.9724 1.7286 0.3856 0.3842 9.9837 1.7487 0.3698 0.3629 13.8321 1.7688 0.3665 0.3695 18.3173 1.7889 0.3648 0.3671 24.7846 1.8090 0.3835 0.3671 36.8281 1.8291 0.4091 0.4053 45.9046 1.8492 0.4622 0.4659 55.9493 1.8693 0.5367 0.5460 63.1218 1.8894 0.6447 0.6375 68.3515 1.9095 0.7663 0.7571 63.7493 1.9296 0.9091 0.9140 48.4565 1.9497 1.0680 1.0704 18.9879 1.9698 1.2216 1.2246 -5.7848 1.9899 1.3753 1.3675 -20.4538 2.0100 1.5169 1.5081 -46.4395 2.0301 1.6317 1.6388 -67.9201 2.0502 1.7246 1.7404 -85.8038 2.0703 1.7819 1.7738 -96.0019 2.0904 1.8011 1.8075 -91.5508 2.1105 1.7825 1.7801 -72.8745 2.1306 1.7405 1.7457 -53.2223 2.1507 1.6750 1.6798 -38.1749 2.1708 1.5954 1.5943 -24.1167 2.1909 1.5090 1.5170 -18.0062 2.2110 1.4121 1.4107 -18.7420 2.2311 1.3088 1.3180 -19.8545 2.2512 1.2000 1.2067 -7.2523 2.2713 1.0853 1.0783 7.1091 2.2914 0.9715 0.9658 3.5716 2.3115 0.8626 0.8627 14.8536 2.3316 0.7664 0.7659 37.1942 2.3517 0.6798 0.6700 40.9521 2.3718 0.6014 0.5805 30.4765 2.3919 0.5392 0.5361 22.1798 2.4120 0.4865 0.4845 21.8410 2.4321 0.4359 0.4381 18.1663 2.4522 0.3960 0.4025 11.2460 2.4723 0.3587 0.3486 11.1952 2.4924 0.3254 0.3274 13.1521 2.5125 0.3015 0.3067 14.0482 2.5326 0.2800 0.2782 9.5020 2.5527 0.2676 0.2703 8.1188 2.5728 0.2499 0.2420 6.0769 2.5929 0.2421 0.2471 3.6119 2.6130 0.2323 0.2435 2.4879 2.6331 0.2267 0.2299 0.8712 2.6532 0.2226 0.2175 -1.0786 2.6733 0.2140 0.2157 -1.9539 2.6934 0.2080 0.2061 -2.3031 2.7135 0.1993 0.2006 -2.7355 2.7336 0.1953 0.1869 -4.2197 2.7537 0.1811 0.1873 -4.5081 2.7738 0.1695 0.1518 -3.9986 2.7939 0.1565 0.1583 -1.3109 2.8140 0.1438 0.1389 1.7317 2.8341 0.1356 0.1270 4.7378