We don't do homework assignments on the list, but one answer requires no loops and an understanding of the various ways R uses vectors for indexing:
?"[" ------------------------------------- David L Carlson Department of Anthropology Texas A&M University College Station, TX 77840-4352 -----Original Message----- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Srdjan Santic Sent: Tuesday, December 3, 2013 5:44 AM To: r-help@r-project.org Subject: [R] Generating a matrix I'm trying to write a function that will generate a NxN matrix that has the value K on both diagonals, while the values outside the diagonals (up and down) are 1's (for conflicting positions such as [4,5] and [5,4] the larger value is written in the matrix). Basically, I'm trying to replicate this matrix (where N = 8 and K = 5): 5 1 0 0 0 0 1 5 1 5 1 0 0 1 5 1 0 1 5 1 1 5 1 0 0 0 1 5 5 1 0 0 0 0 1 5 5 1 0 0 0 1 5 1 1 5 1 0 1 5 1 0 0 1 5 1 5 1 0 0 0 0 1 5 Any ideas? Thank you! Srdjan Santic, M.Sc. Graduate Student Faclty of Economics University of Belgrade Serbia --- This email is free from viruses and malware because avast! Antivirus protection is active. ______________________________________________ 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. ______________________________________________ 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.
