I _guess_ it is a zero-based indexing error. igraph vertices and edges are indexed from zero in the 0.5.x version and R vectors are indexed from 1, and this might cause the difference. But hard to say.
G. On Mon, Apr 9, 2012 at 2:47 PM, Peter Flom <[email protected]> wrote: > Hi again > > I tried to make up a toy example, but 30 minutes of trying failed to > reproduce anything useful > > However, in this code: > >> Code: >> vs <- subcomponent1 >> component <- subgraph(g50, vs) >> traitscomponent <- subset(traits50, traits$Position %in% vs) >> >> After which traitscomponent has 37879 rows while vs has length 37880. > > Subcomponent1 is the first column of a subcomponent of g50. It is a vector > of 37880 integers > g50 is a graph with 42,943 rows. The vertices have attributes including > "position" as the first. > Traits50 is a data frame with 42,943 rows and 10 columns. The first column > is "Position". > > Does that provide enough context? > > Peter > > > _______________________________________________ > igraph-help mailing list > [email protected] > https://lists.nongnu.org/mailman/listinfo/igraph-help -- Gabor Csardi <[email protected]> MTA KFKI RMKI _______________________________________________ igraph-help mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/igraph-help
