You can use this: inc[which(!is.na(inc))[1]]
On Tue, Jun 23, 2009 at 11:08 AM, Alfredo Alessandrini <alfreal...@gmail.com > wrote: > 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/ > ---------------------------------------------- > -- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40" S 49° 16' 22" O [[alternative HTML version deleted]]
______________________________________________ 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.
