Hi, I have many subgraphs, I want to calculate the degree of vertices in each subgraph and hold them in a list to be able to compare with the values in another list. I tried this code: y <- lapply(0:4, function(i) paste(sgr, i, sep="") ) here sgr1 for example is a graph object, I was hoping exactly to get sgr1 object values when I write y[[2]], however this list gives confusing elements which is really different than sgr0, sgr1, sgr2, sgr3, sgr4. Sgr1 is : Vertices: 3 Edges: 3 Directed: FALSE Edges: [0] 'ERn_LNp_Nevins7' -- 'ERn_LNn_Nevins26' [1] 'ERn_LNp_Nevins7' -- 'ERn_LNn_Nevins48' [2] 'ERn_LNn_Nevins26' -- 'ERn_LNn_Nevins48' Thanks, Harun Pirim MS State Univ. Ind. & Sys. Eng. Dept. hp100@msstate.edu www2.msstate.edu/~hp100 [[alternative HTML version deleted]]