you can find it by use of indexing with setting 1=T and 0=False in your global environment of R.
On Fri, Jan 10, 2014 at 12:32 PM, email <email8...@gmail.com> wrote: > Dear all, > > I have a binary matrix > > 0 0 0 0 0 > 1 1 1 0 0 > 1 1 1 0 0 > 0 0 0 0 0 > 0 0 0 1 1 > 0 0 0 1 1 > > I want to find the location of all the square and rectangular 1 blocks, > like > > First block in row=2, col=1 to row=3, col=3. > Second block in row=5, col=4, to row=6, col=5. > > How can I find such blocks of 1? > > Thanks: > John > > ______________________________________________ > 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. > [[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.
