Thanks for your help. Regards, fatemeh
On Wed, Nov 5, 2014 at 10:46 PM, Gábor Csárdi <[email protected]> wrote: > This is too broad to answer. Yes, on average C code is faster than R code, > but still, the wrong implementation in C can be slower than a better > implementation in R. > > I would start by profiling the code, see e.g. > http://adv-r.had.co.nz/Profiling.html > > Gabor > > On Wed, Nov 5, 2014 at 2:14 PM, Fatemeh a <[email protected]> wrote: > >> Hi, >> Thank you so much, >> >> I have another question regards the implementation in igraph, My own >> graph consist of 8000 nodes and 140000 Edges and it took times to calculate >> the measures, so my question is that to speed the calculation I should >> implement them in the core language ,right ? >> >> PS : I attached the functions. >> >> Regards, >> Fatemeh >> ᐧ >> >> On Wed, Nov 5, 2014 at 7:11 PM, Gábor Csárdi <[email protected]> >> wrote: >> >>> These are a lot of questions, and I guess that discourages people. >>> >>> Yes, I am sure that for some of these measures can be defined on a >>> weighted and/or directed graph, some of them have been implemented >>> already it seems: e.g. http://www.cis.upenn.edu/~jshi/software/ >>> >>> So I guess, the answer is yes to both questions. >>> >>> Gabor >>> >>> On Wed, Nov 5, 2014 at 1:38 AM, Fatemeh a <[email protected]> wrote: >>> > Hi, >>> > I am not sure if my question well-suited here or not but what I am >>> trying to >>> > do is to implement the evaluation metric such as >>> > (Conductance,Expansion,Internal density,Cut Ratio,Normalized Cut) using >>> > igraph in R,I implement them for an unweighted an undirected graph >>> but what >>> > I am wondering about is to implement these metrics for weighted and >>> directed >>> > graph , these are my questions: >>> > >>> > Dose these metric define for the weighted and directed graph in >>> literature, >>> > my inquires wasn't so successful? >>> > As for weighted network, we could easily consider sum of weights >>> instead of >>> > number of edges, right? >>> > >>> > Thanks you in advance, >>> > Fatemeh >>> > >>> > >>> > _______________________________________________ >>> > igraph-help mailing list >>> > [email protected] >>> > https://lists.nongnu.org/mailman/listinfo/igraph-help >>> > >>> >>> _______________________________________________ >>> igraph-help mailing list >>> [email protected] >>> https://lists.nongnu.org/mailman/listinfo/igraph-help >>> >> >> >> >> -- >> regards >> F..A >> >> _______________________________________________ >> igraph-help mailing list >> [email protected] >> https://lists.nongnu.org/mailman/listinfo/igraph-help >> >> > > _______________________________________________ > igraph-help mailing list > [email protected] > https://lists.nongnu.org/mailman/listinfo/igraph-help > > -- regards F..A
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