Hi, This has got to be easy, but for some reason the simplest things can be the hardest to find help on in R. How the heck do I subset a string? e.g., x = "abcdef" I just want the first 3 characters. Cheers! Nick -- ===================================================Nicholas J. Matzke Ph.D. Student, Graduate Student Researcher Huelsenbeck Lab Center for Theoretical Evolutionary Genomics 4151 VLSB (Valley Life Sciences Building) Department of Integrative Biology University of California, Berkeley Graduate Student Instructor, IB200A Principles of Phylogenetics: Systematics http://ib.berkeley.edu/courses/ib200a/index.shtml Lab websites: http://ib.berkeley.edu/people/lab_detail.php?lab=54 http://fisher.berkeley.edu/cteg/hlab.html Dept. personal page: http://ib.berkeley.edu/people/students/person_detail.php?person=370 Lab personal page: http://fisher.berkeley.edu/cteg/members/matzke.html Lab phone: 510-643-6299 Dept. fax: 510-643-6264 Cell phone: 510-301-0179 Email: matzke at berkeley.edu Mailing address: Department of Integrative Biology 3060 VLSB #3140 Berkeley, CA 94720-3140 ----------------------------------------------------- "[W]hen people thought the earth was flat, they were wrong. When people thought the earth was spherical, they were wrong. But if you think that thinking the earth is spherical is just as wrong as thinking the earth is flat, then your view is wronger than both of them put together." Isaac Asimov (1989). "The Relativity of Wrong." The Skeptical Inquirer, 14(1), 35-44. Fall 1989. http://chem.tufts.edu/AnswersInScience/RelativityofWrong.htm
substr(x,1,3) On Thu, 2010-03-04 at 21:32 -0800, Nick Matzke wrote:> Hi, > > This has got to be easy, but for some reason the simplest things can be > the hardest to find help on in R. > > How the heck do I subset a string? > > e.g., > > x = "abcdef" > > I just want the first 3 characters. > > Cheers! > Nick > > >-- Simon Blomberg, BSc (Hons), PhD, MAppStat. Lecturer and Consultant Statistician School of Biological Sciences The University of Queensland St. Lucia Queensland 4072 Australia Room 320 Goddard Building (8) T: +61 7 3365 2506 http://www.uq.edu.au/~uqsblomb email: S.Blomberg1_at_uq.edu.au Policies: 1. I will NOT analyse your data for you. 2. Your deadline is your problem. Statistics is the grammar of science - Karl Pearson
thanks!! was stuck in python brain. Simon Blomberg wrote:> substr(x,1,3) > > On Thu, 2010-03-04 at 21:32 -0800, Nick Matzke wrote: >> Hi, >> >> This has got to be easy, but for some reason the simplest things can be >> the hardest to find help on in R. >> >> How the heck do I subset a string? >> >> e.g., >> >> x = "abcdef" >> >> I just want the first 3 characters. >> >> Cheers! >> Nick >> >> >> >-- ===================================================Nicholas J. Matzke Ph.D. Student, Graduate Student Researcher Huelsenbeck Lab Center for Theoretical Evolutionary Genomics 4151 VLSB (Valley Life Sciences Building) Department of Integrative Biology University of California, Berkeley Graduate Student Instructor, IB200A Principles of Phylogenetics: Systematics http://ib.berkeley.edu/courses/ib200a/index.shtml Lab websites: http://ib.berkeley.edu/people/lab_detail.php?lab=54 http://fisher.berkeley.edu/cteg/hlab.html Dept. personal page: http://ib.berkeley.edu/people/students/person_detail.php?person=370 Lab personal page: http://fisher.berkeley.edu/cteg/members/matzke.html Lab phone: 510-643-6299 Dept. fax: 510-643-6264 Cell phone: 510-301-0179 Email: matzke at berkeley.edu Mailing address: Department of Integrative Biology 3060 VLSB #3140 Berkeley, CA 94720-3140 ----------------------------------------------------- "[W]hen people thought the earth was flat, they were wrong. When people thought the earth was spherical, they were wrong. But if you think that thinking the earth is spherical is just as wrong as thinking the earth is flat, then your view is wronger than both of them put together." Isaac Asimov (1989). "The Relativity of Wrong." The Skeptical Inquirer, 14(1), 35-44. Fall 1989. http://chem.tufts.edu/AnswersInScience/RelativityofWrong.htm