Re: [R] locate pattern in matrix

2014-01-10 Thread William Dunlap
half > Of email > Sent: Thursday, January 09, 2014 11:03 PM > To: r-help@r-project.org > Subject: [R] locate pattern in matrix > > 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

Re: [R] locate pattern in matrix

2014-01-10 Thread Koushik Saha
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 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

[R] locate pattern in matrix

2014-01-09 Thread email
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?