[R] about power.law.fit
Dear all, I'm using igraph for some analysis about the network I have. I have a question about the function power.law.fit. I wonder if there is any test for checking whether the power.law.fit is good for the input, i.e., under which situation, could we use this function to get a reliable result. I'm afraid even I input a random graph without any property of power-law characteristics, it will returns an outcome which seems to be a fit to available data while it has no meaning to us. Is there any index like goodness of fit ? Thank you for any comments. Best! Weijia [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] how to get degree according to the name of the node?
Hi all, I have two networks for the same group of the users. I want to compare individual's degree in different networks. But how could I get the degrere of the nodes according to its name? When I use degree(g1), I could only get a vector of the degree of each node. But when I turn to g2, I don't know whose degree it is so I can't match it with the degree(g2). Now I'm trying to make the users appearing in the edgelist in the same sequence. for example: in g1 input file A B 1 C D 2 C B 3 in g2 input file A B 0 C D 12 C B 0 If I make the two input file like this, will it help? I mean the degree vector will be exactly the same in the two graph? Thanks! [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] question about Assortative and Disassortative Mixing
Dear colleagues, I'm trying to have a look at the Assortative and Disassortative( http://en.wikipedia.org/wiki/Assortative_mixing) of the network I have. But it seems that the igraph hasn't mentioned that yet. I have to get the in/out degree of the vertices of each edge and calculate the Pearson's Correlation coefficient which seems to be quite a huge task for me. :( So I wonder if anyone had done that before and give me some hints on it? Thank you in anticipation! Weijia [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] question about SNA in R, thanks!
Dear colleagues, I'm trying to have a look at the Assortative and Disassortative ( http://en.wikipedia.org/wiki/Assortative_mixing) of the network I have. But it seems that the igraph hasn't mentioned that yet. I have to get the in/out degree of the vertices of each edge and calculate the Pearson's Correlation coefficient which seems to be quite a huge task for me. :( So I wonder if anyone had done that before and give me some hints on it? Thank you in anticipation! Weijia [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] about qqmath, thanks!
Dear collegues, Is there anyone who ever used qqmath(). Actually, I want to know the distribution of the dependent varible. It's a count number, so it should be poisson or negative binomial distribution. But how could I use R to get the ë and á? Or to demonstrate the distribution to be negative binomial ? I tried my best to find the examples by google, but failed. Thank you for the suggestions. Best! [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] about centralization
Hi all, Is there anyone who ever used igraph to calculate the index of centralization ? I tried my best but can't find it in igraph. The brief introduction to centralization can be found here , and I think it's an important index for measuring the centrality on the aggregated level.(http://faculty.ucr.edu/~hanneman/nettext/C10_Centrality.html) Thank you for any comments and suggestions. Best wishes! Weijia [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Welcome to the R-help mailing list (Digest mode)
Hi friends, Is there anyone who happened to import data set in the DL format into R for further analysis? In the package of network, there's only a method named read.paj(). So now, I have to get the dl file from the original data set, and use UCINET to convert it to .net file. It's too complicated. :( In the package of igraph, edgelist is one the format which can be imported, however, weight can not be expressed. As for the format ncol, weight is considered, but it's always undirected. Thank you for comments and suggestions! Best! Weijia [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
