Perhaps the following will help. http://www.jsoftware.com/docs/help701/dictionary/samp20.htm
Sent from my iPad On Feb 24, 2013, at 8:11 AM, alessandro codenotti <[email protected]> wrote: > > no, sorry, i need an NxN matrix, where N is the number of nodes in the > network where the values of the (i,j) entry is 1 when there is an arc between > the node i and the node j and 0 otherwise. > > for example let's consider the 3x3 network given before, the corresponding > adjacency matrix is: > > +-+-+-+-+-+-+-+-+-+ > |x|A|B|C|D|E|F|H|I| > +-+-+-+-+-+-+-+-+-+ > |A|0|1|0|1|0|0|0|0| > +-+-+-+-+-+-+-+-+-+ > |B|1|0|1|0|1|0|0|0| > +-+-+-+-+-+-+-+-+-+ > |C|0|1|0|0|0|1|0|0| > +-+-+-+-+-+-+-+-+-+ > |D|1|0|0|0|1|0|0|0| > +-+-+-+-+-+-+-+-+-+ > |E|0|1|0|1|0|1|1|0| > +-+-+-+-+-+-+-+-+-+ > |F|0|0|1|0|1|0|0|1| > +-+-+-+-+-+-+-+-+-+ > |G|0|0|0|1|0|0|1|0| > +-+-+-+-+-+-+-+-+-+ > |H|0|0|0|0|1|0|0|1| > +-+-+-+-+-+-+-+-+-+ > |I|0|0|0|1|0|1|1|0| > +-+-+-+-+-+-+-+-+-+ > > I need, if it is possible, a verb that given 3 as input gives this matrix at > output (i only need the part with 0s and 1s, nonboxed), the problem is that i > don't know how to calculate it for a square network with a generic N as side > so i was asking help more with the maths than with J itself! > > thanks anyway for trying to help! > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
