I've the NA value also between the value of the vector: > inc [1] NA NA NA NA NA NA NA [8] NA NA NA NA NA NA NA [15] NA NA NA NA NA NA NA [22] NA NA NA NA NA NA NA [29] NA NA NA NA NA NA NA [36] NA NA NA NA NA NA NA [43] NA NA NA NA NA NA NA [50] NA NA NA NA NA NA NA [57] NA NA NA NA NA NA NA [64] NA NA NA NA NA NA NA [71] NA NA NA NA NA NA NA [78] NA NA NA NA 13.095503 10.140119 7.989186 [85] 8.711888 7.201234 13.029250 14.430755 8.662832 8.810785 14.421302 [92] 7.614985 7.548091 9.843389 14.977402 20.875255 7.787543 2.005056 [99] 4.016916 3.601773 4.140390 7.241999 13.280794 18.038902 18.762169 [106] 4.280065 5.942021 6.292010 11.866446 19.450442 11.942362 6.224328 [113] 3.176050 5.456117 2.733487 3.992823 13.633171 19.514301 25.085256 [120] 5.640089 5.890486 12.421150 18.821420 22.478664 11.503805 7.051254 [127] 7.560921 12.000394 20.464875 16.147598 13.746290 9.416060 35.848221 [134] 36.739481 23.516759 7.317599 3.928247 10.371437 11.202935 12.574649 [141] 6.906980 9.191260 7.080267 2.810271 5.494705 10.617141 14.578020 [148] 10.981610 7.343975 2.179511 2.726651 10.794842 9.872493 NA [155] 10.525064 16.134541 29.283385 18.352996 9.216318 6.253805 2.704267 [162] 4.274514 3.138237 12.296835 20.982433 13.001104 2.606328 3.333271 [169] 5.514425 2.179244 5.381514 6.848380 3.794428 5.114591 4.975830 [176] 3.809948 10.131608 14.145913 >
> inc[82] [1] 13.09550 > which(diff(is.na(inc)) < 0) [1] 81 154 > inc[154] [1] NA I must obtain only the first value, in this case: inc[82]. Regards, Alfredo 2009/6/23 Henrique Dallazuanna <www...@gmail.com> > > Try this: > > which(diff(is.na(inc)) < 0) > > On Tue, Jun 23, 2009 at 11:00 AM, Alfredo Alessandrini <alfreal...@gmail.com> > wrote: >> >> Hi, >> >> I've a vector like this: >> >> > inc >> [1] NA NA NA NA NA NA NA >> [8] NA NA NA NA NA NA NA >> [15] NA NA NA NA NA NA NA >> [22] NA NA NA NA NA NA NA >> [29] NA NA NA NA NA NA NA >> [36] NA NA NA NA NA NA NA >> [43] NA NA NA NA NA NA NA >> [50] NA NA NA NA NA NA NA >> [57] NA NA NA NA NA NA NA >> [64] NA NA NA NA NA NA NA >> [71] NA NA NA NA NA NA NA >> [78] NA NA NA NA 13.095503 10.140119 7.989186 >> [85] 8.711888 7.201234 13.029250 14.430755 8.662832 8.810785 14.421302 >> [92] 7.614985 7.548091 9.843389 14.977402 20.875255 7.787543 2.005056 >> [99] 4.016916 3.601773 4.140390 7.241999 13.280794 18.038902 18.762169 >> >> I must obtain the position of first value of the vector... >> >> In this case is 82. >> >> > inc[82] >> [1] 13.09550 >> >> >> Regards, >> >> Alfredo >> >> ______________________________________________ >> R-help@r-project.org mailing list >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html >> and provide commented, minimal, self-contained, reproducible code. > > > > -- > Henrique Dallazuanna > Curitiba-Paraná-Brasil > 25° 25' 40" S 49° 16' 22" O -- ---------------------------------------------- Alfredo Alessandrini, Dr. Post-doc Department of Environment and Forest (DAF) Unitus - Viterbo http://www.unitus.it/dipartimenti/daf/dendro/ ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
