我有一个用Perl脚本编写的CSV文件。文件在Excel或简单文本中打开正常，看起来很好。它有9行。但是，当我用nrow（）或dim（）计算它时，我得到8行。这导致了下游问题。标题是'a'到'j'。感谢。
a 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100
b 0.401374 0.467736 0.582949 0.751601 0.860567 0.967758 0.965143 0.961866 0.863406 0.914746 0.984586 0.950531 0.935572 0.949083 0.968802 0.958067 0.980222 0.9917 1.009155 1.013709 1.008558 0.99945 0.988164 0.976623 0.973183 0.96519 0.968162 0.966721 0.962864 0.965214 0.968562 0.97235 0.981299 0.99698 1.013786 1.033542 1.050533 1.060338 1.072083 1.067729 1.057589 1.053562 1.030205 1.013217 0.994013 0.986159 0.981776 0.974559 0.975097 0.969779 0.969334 0.960085 0.963134 0.963621 0.961985 0.963223 0.957363 0.980404 0.962947 0.974328 0.969675 0.976323 0.974097 0.966781 0.972603 0.962981 0.975821 0.958069 0.980906 0.975684 0.943835 0.948154 0.94311 0.942586 1.022319 1.009415 1.021423 1.059047 1.085726 1.010326 1.036282 1.057417 1.046533 1.159883 1.204652 1.151679 1.244229 1.301202 1.490301 1.304381 1.712297 1.348033 0.736757 0.640583 1.474143 5.664327 2.547607 9.543845 9.572942 4.721692 0
c 0.483217 0.29612 0.31702 0.543388 0.691817 0.734183 0.772058 0.881707 0.942905 0.921662 0.970798 0.953243 0.945404 1.019665 0.938993 0.971219 0.959108 0.987285 0.991304 1.027208 0.994463 0.984487 0.998657 0.978592 0.96603 0.961446 0.957071 0.955184 0.957707 0.954644 0.970809 0.962456 0.973713 0.991673 1.012059 1.029588 1.042737 1.06048 1.065989 1.07043 1.060842 1.046754 1.035313 1.01837 0.998625 0.985907 0.981162 0.979541 0.977763 0.976078 0.968934 0.968159 0.967233 0.97003 0.969417 0.973832 0.973617 0.984223 0.976866 0.979505 0.985046 0.977616 0.987978 0.976532 0.974292 0.982313 0.975786 0.972815 1.004171 0.974393 0.977434 0.9359 0.960213 0.985705 1.020929 1.011589 1.006536 0.988384 1.037618 1.004525 1.0499 1.075382 1.126694 1.097262 1.145451 1.138151 1.268054 1.364637 1.548332 1.784365 1.66168 1.857999 1.281119 0.714744 1.409833 5.417217 2.436466 15.516732 14.648507 4.515705 0
d 0.54739 0.417737 0.560592 0.762408 0.840282 0.906248 0.970471 0.949707 0.933483 0.934403 1.07911 0.96818 1.019784 0.984101 0.96848 0.962378 0.981269 1.010261 1.036639 1.020298 0.996359 1.002746 0.986174 0.987546 0.975991 0.963343 0.967528 0.968886 0.967459 0.962992 0.966011 0.973625 0.982147 0.995917 1.010114 1.029 1.04789 1.059755 1.07154 1.072574 1.060199 1.052861 1.040088 1.017165 0.996716 0.989731 0.970404 0.974642 0.970293 0.967025 0.964511 0.962078 0.966636 0.960035 0.957345 0.967206 0.964344 0.972463 0.970353 0.971953 0.965436 0.968887 0.979595 0.967244 0.978083 0.956349 0.976509 0.990198 0.967315 0.965619 0.937825 0.963115 0.937972 0.940783 0.950582 0.999596 0.964397 1.073948 1.011812 0.992207 0.968892 1.019393 1.036893 1.040682 1.136172 1.175936 1.370799 1.626169 1.540309 1.521391 1.696523 1.335615 1.526301 0.740462 2.008275 3.367288 3.155172 17.020668 5.690853 9.356391 0
e 0.534257 0.623387 0.658379 1.021547 1.086113 1.10879 1.092341 1.047527 0.978066 1.113138 1.097839 1.081836 1.061449 1.01633 0.977861 1.064722 0.993365 1.099759 1.082891 1.097126 1.068604 1.050802 1.035536 1.020507 1.005109 1.010964 1.00586 0.999783 0.998753 0.995041 0.991949 0.991496 0.99574 1.009774 1.028723 1.05391 1.05445 1.076628 1.073423 1.073404 1.061363 1.047512 1.033238 1.004406 0.996751 0.969424 0.958341 0.960392 0.945673 0.947249 0.95037 0.943966 0.933722 0.930457 0.930735 0.925822 0.932857 0.93624 0.926209 0.926974 0.921879 0.92411 0.938514 0.936167 0.946051 0.938521 0.91792 0.927171 0.927905 0.930573 0.941126 0.905906 0.885595 0.890934 0.956747 0.993943 1.004912 0.966991 1.029596 0.934891 0.902882 1.005912 1.055131 1.060036 1.210456 1.204307 1.363757 1.383982 1.301273 1.834122 2.071989 1.468085 2.066713 1.317749 1.516236 7.76809 3.930527 17.669452 11.815548 0 0
f 0.580985 0.297751 0.444868 0.651545 0.850767 0.88177 1.045047 1.069708 1.007082 0.970515 0.995463 1.077379 0.956378 0.9633 0.963782 0.972252 1.001651 1.012825 1.024981 1.039174 1.018857 1.014041 1.004354 0.982018 0.985064 0.985249 0.976443 0.974376 0.972889 0.971678 0.975724 0.976216 0.984206 0.996217 1.017416 1.036441 1.049075 1.06143 1.068939 1.070938 1.062538 1.047006 1.032694 1.014813 0.99588 0.979417 0.969517 0.974295 0.968714 0.964257 0.964937 0.959818 0.956047 0.95799 0.95596 0.950887 0.954934 0.958854 0.961795 0.962765 0.970278 0.96375 0.963601 0.961951 0.956463 0.963495 0.957578 0.955705 0.988666 0.975476 0.967505 0.956554 0.927677 0.955343 0.973189 1.010146 1.057061 0.998942 1.042087 1.069688 1.010457 1.050207 1.037386 1.131603 1.180845 1.164758 1.302756 1.670756 1.413374 1.596161 1.643926 1.543092 0.756803 0.536158 1.850752 6.163239 0.799615 9.58566 14.422327 0 0
g 0.368286 0.133209 0.189854 0.329541 0.312233 0.371553 0.55966 0.663372 0.678283 0.811317 0.896647 0.887872 0.919798 0.945003 0.895565 0.968837 0.991214 0.987583 1.00316 1.020707 1.015521 0.985502 0.998961 0.976184 0.98338 0.973889 0.9674 0.968549 0.966232 0.966105 0.966297 0.965883 0.976568 0.999395 1.011924 1.03344 1.051626 1.059014 1.063355 1.068936 1.053488 1.045903 1.031994 1.008174 0.991796 0.972343 0.973369 0.969431 0.967085 0.963154 0.966865 0.962234 0.95759 0.96642 0.966713 0.974709 0.973966 0.981547 0.984093 0.991954 0.985628 0.996822 0.991295 0.98659 0.989936 0.978239 0.977446 1.025974 1.042636 1.040808 0.982495 0.991225 1.015466 1.008242 1.030642 1.004306 1.086892 1.097275 1.120253 1.138095 1.135337 1.209962 1.225443 1.224011 1.338381 1.450842 1.727673 1.719172 1.82727 2.074713 1.709345 2.290568 2.321692 1.542005 0.798422 8.181066 2.759658 5.513723 22.122134 13.63921 2.675538
h 0.30497 0.32974 0.424478 0.455078 0.523571 0.606559 0.660406 0.703971 0.729999 0.915297 0.981265 0.96674 0.925204 1.036524 0.953261 0.978409 0.987847 1.01834 1.019895 1.038827 1.024035 1.012836 0.994345 0.994459 0.972257 0.97309 0.978206 0.968312 0.964948 0.962225 0.96529 0.974432 0.975632 0.994073 1.010742 1.030179 1.042012 1.056884 1.058926 1.060281 1.059781 1.038339 1.029365 1.009022 0.986078 0.978875 0.9716 0.969215 0.958117 0.972496 0.968037 0.97107 0.958519 0.970863 0.969962 0.975005 0.978711 0.984085 0.984683 0.984162 0.996244 0.997889 0.994661 1.001441 0.985552 1.021569 1.000549 1.002552 0.997683 1.033186 1.013344 1.019947 1.057587 1.033291 1.069199 1.036226 1.168877 1.175308 1.22975 1.11576 1.122753 1.106146 1.224346 1.258167 1.290459 1.477277 1.427201 1.742816 1.558004 1.386269 1.910887 1.920479 1.08143 1.206672 2.082642 3.048554 3.085038 18.491473 12.365233 0 0
j 0.354463 0.327358 0.398802 0.473 0.602168 0.764142 0.819362 0.914898 0.823412 1.010715 0.854421 0.892255 0.981967 0.966507 1.021983 0.975027 0.961088 0.960516 0.971975 1.01222 0.979767 0.987716 0.98707 0.970561 0.963265 0.962699 0.958097 0.961291 0.952577 0.958112 0.9596 0.967041 0.97311 0.991703 1.006086 1.025563 1.040921 1.055595 1.05902 1.068992 1.060288 1.046614 1.037744 1.019254 0.996458 0.984552 0.986514 0.984358 0.977773 0.980087 0.972711 0.969122 0.975125 0.968046 0.968058 0.979439 0.97843 0.978518 0.98551 0.979352 0.983617 0.984822 0.986629 0.986932 0.991861 1.002382 0.999269 0.99465 0.994519 0.987402 1.000541 0.977929 0.976282 0.964102 1.032155 1.04334 1.063832 1.096302 1.105991 1.065358 1.106644 1.068104 1.064264 1.167453 1.278531 1.383359 1.417057 1.672739 1.39427 1.396529 1.94346 1.50906 1.274638 1.467406 2.337833 6.387922 0 11.099379 16.193772 4.992065 0
答案 0 :(得分：3)
R中的函数可以为某些参数设置默认值。对于read.csv：
read.csv(file, header = TRUE, sep = ",", quote = "\"",
dec = ".", fill = TRUE, comment.char = "", ...)
header=TRUE表示que第一行假定为文件的标题。这意味着，它不会被R识别为数据。如果您使用header=FALSE
read.csv(file, header=FALSE)
你将获得9行。