If you want to 'cut' the vector into equal lengths of 4, for example, then the following would work:
split(x, as.integer((seq_along(x) - 1) / 4)) On Nov 22, 2007 9:44 AM, Dani Valverde <[EMAIL PROTECTED]> wrote: > Hello, > That's very useful. I think the cut() function is the key. However, in > my real vector I have 13112 points. I would like the function to cut the > vector every certain number of points (ie 4). Is there a way to specify > this without the need of writing each cutting point? For example, I do > not want to write breaks=c(4,8,12,...,13108, +Inf), but some expresion > to avoid writing such a long argument. > Best regards, > > Dani > > En/na Petr PIKAL ha escrit: > > Hi > > > > you shall be more specific. Do you want to split your vector according > > some pionts > > > > split(x, findInterval(x, c(6,12,16))) > > > > if you want to make a factor from your x vector, then you can use > > findInterval or cut > > > > cut(x, breaks = c(0,6,12,17, +Inf)) > > > > Or something else? > > Regards > > > > Petr > > [EMAIL PROTECTED] > > > > [EMAIL PROTECTED] napsal dne 22.11.2007 12:52:38: > > > > > > >> Hello, > >> I have a vector, lets say > >> x <- 1:50 > >> I would like it to be cut at certain points, being for example 1:5, > >> 6:11, 12:17, ... > >> How can I do it? I have tried the cut() function, but I don not know how > >> > > > > > >> to place the cutting points properly. > >> Best regards, > >> > >> Dani > >> > >> -- > >> Daniel Valverde Saubí > >> > >> Grup de Biologia Molecular de Llevats > >> Facultat de Veterinària de la Universitat Autònoma de Barcelona > >> Edifici V, Campus UAB > >> 08193 Cerdanyola del Vallès- SPAIN > >> > >> Centro de Investigación Biomédica en Red > >> en Bioingeniería, Biomateriales y > >> Nanomedicina (CIBER-BBN) > >> > >> Grup d'Aplicacions Biomèdiques de la RMN > >> Facultat de Biociències > >> Universitat Autònoma de Barcelona > >> Edifici Cs, Campus UAB > >> 08193 Cerdanyola del Vallès- SPAIN > >> +34 93 5814126 > >> > >> ______________________________________________ > >> 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. > >> > > > > > > > > > -- > Daniel Valverde Saubí > > Grup de Biologia Molecular de Llevats > Facultat de Veterinària de la Universitat Autònoma de Barcelona > Edifici V, Campus UAB > 08193 Cerdanyola del Vallès- SPAIN > > Centro de Investigación Biomédica en Red > en Bioingeniería, Biomateriales y > Nanomedicina (CIBER-BBN) > > Grup d'Aplicacions Biomèdiques de la RMN > Facultat de Biociències > Universitat Autònoma de Barcelona > Edifici Cs, Campus UAB > 08193 Cerdanyola del Vallès- SPAIN > +34 93 5814126 > > ______________________________________________ > 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. > -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem you are trying to solve? ______________________________________________ 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.
