Re: [R] Visualizing a dissimilarity matrix in Euclidean space

2011-07-09 Thread Corey Sparks
Hi, I've playd with this kind of problem before, have yoiu looked at principal coordinates? You can use the cmdscale() function in R to take the eigenstructure of your distance matrix and plot the differences in low dimensional space, it can be very instructive as to the dissimilarity between your

[R] Visualizing a dissimilarity matrix in Euclidean space

2011-07-08 Thread Tea Los
Hi, I have a set of nodes and a dissimilarity matrix for them, as well as a csv file in which the diss matrix has been converted to [node_1, node_2, dissimilarity] format. I would like to visualize this as a graph in Euclidean space (that is, similar nodes clumped together in clusters), rather th