Re: [R] Trouble creating and adjacency matrix

2011-09-26 Thread Spartina
Hello all, Thanks for your answers! I'll give your suggestions a try later on today. Cheers, Léa -- View this message in context: http://r.789695.n4.nabble.com/Trouble-creating-and-adjacency-matrix-tp3842106p3843660.html Sent from the R help mailing list archive at Nabble.com. ___

Re: [R] Trouble creating and adjacency matrix

2011-09-25 Thread Rolf Turner
See end of message. On 26/09/11 10:07, Spartina wrote: Hello all, I'm having trouble creating an adjacency matrix. Basically, I need to turn the following distance matrix into an adjacency matrix based on whether values are>1.5 or not. If they are>1.5, then the returned value should be 0. If

Re: [R] Trouble creating and adjacency matrix

2011-09-25 Thread Jorge I Velez
Hi Léa, Try ifelse(DistanceMatrix > 1.5, 0, 1) HTH, Jorge On Sun, Sep 25, 2011 at 5:07 PM, Spartina <> wrote: > Hello all, > > I'm having trouble creating an adjacency matrix. > > Basically, I need to turn the following distance matrix into an adjacency > matrix based on whether values are >1

[R] Trouble creating and adjacency matrix

2011-09-25 Thread Spartina
Hello all, I'm having trouble creating an adjacency matrix. Basically, I need to turn the following distance matrix into an adjacency matrix based on whether values are >1.5 or not. If they are >1.5, then the returned value should be 0. If they are =<1.5, then the returned value should be 1. Di

Re: [R] Trouble creating and adjacency matrix

2011-09-25 Thread Daniel Malter
x<-rnorm(25,1.5,1) dim(x)=c(5,5) x y<-ifelse(c(x)>1.5,1,0) dim(y)<-dim(x) HTH, Daniel Spartina wrote: > > Hello all, > > I'm having trouble creating an adjacency matrix. > > Basically, I need to turn the following distance matrix into an adjacency > matrix based on whether values are >1.5 o