See at end ... On 08-Jul-10 12:41:03, Ted Harding wrote: > On 08-Jul-10 10:33:56, Gina Liao wrote: >> Dear all, >> Hi, I have the problems about converting the matrix to adjacency >> matrix.Here's my example, >> a b c d >> e fa 1.0000000 0.4048823682 0.1228531 0.49046991 >> 0.4945158868 0.307443317b 0.4048824 1.0000000000 0.4367475 0.96949219 >> 0.0007378596 0.560747765c 0.1228531 0.4367474719 1.0000000 0.40037341 >> 0.3157538204 0.428183667d 0.4904699 0.9694921891 0.4003734 1.00000000 >> 0.0661313658 0.575606129e 0.4945159 0.0007378596 0.3157538 0.06613137 >> 1.0000000000 0.001076251f 0.3074433 0.5607477645 0.4281837 0.57560613 >> 0.0010762514 1.000000000 >> and my threshold value is 0.4763, which means any value above it is >> "1" >> and any values below it is "0". >> so my adjacency matrix should be like this, >> a b c d e fa 1 0 0 1 1 0b 0 1 0 1 >> 0 1c 0 0 1 0 0 0d 1 1 0 1 0 1e 1 0 0 >> 0 1 0f 0 1 0 1 0 1 >> >> I'd like to ask how to convert the matrix to adjacency matrix. >> Thanks!!! >> >> Gina > > If B is your original matrix of numbers, and A is to be the adjacency > matrix which you want, then: > > B <- 1*(A > 0.4763) > > Ted.
OOPS! I got that the wrong way round! It should of course have been A <- 1*(B > 0.4763) Ted. -------------------------------------------------------------------- E-Mail: (Ted Harding) <ted.hard...@manchester.ac.uk> Fax-to-email: +44 (0)870 094 0861 Date: 08-Jul-10 Time: 14:31:30 ------------------------------ XFMail ------------------------------ ______________________________________________ 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.
