search for: erdos

Hi, I have a erdos-renyi game with 6000 nodes and probability 0.003. g1 = erdos.renyi.game(6000, 0.003) How to create a Watts Strogatz game with the same probability. g1 = watts.strogatz.game(1, 6000, ?, ?) What should be the third and fourth parameter to this argument. -- View this message in context: http://r....

Hi, I am plotting degree distribution of a graph using the function, library(igraph) dd1 = degree.distribution(G) plot(dd1, xlab = "degree", ylab="frequency") I would like to plot the mean of the distribution as a vertical line in the attached plot. Please let me know how to do this. Thanks, Kumar http://r.789695.n4.nabble.com/file/n3334375/cdata3_dd.png cdata3_dd.png --

Hi, I am running a simple linear model with (say) 5 independent variables. Is there a simple way of getting the variance-covariance matrix of the coeffcient estimates? None of the values of the lm() seem to provide this. Thanks in advance, Ritwik Sinha rsinha@darwin.cwru.edu Grad Student Case Western Reserve University [[alternative HTML version deleted]]

Hi R users, I am using built-in functions in igraph package to draw networks . I need to compare several network with exactly the same structure but with edge hightlighted differently. I am wondering if there is a way to save the layout so that every graph will look the same as each other except for the colors of edges. Or is there any parameter I can set for this purpose?? Thanks in advance,

Hi wizards, I need to know how can I generate this numbers I have n numbers N1,N2 , Nn , but Nn = 1- sum(N1+N2+...+Nn-1) and sum(N1+N2+..Nn)=1 and N1,N2,..Nn with 0<N<1 . Does somebody know how to generate it ? Some distribution or algorithm. Thanks in advance. -- Web Page http://www.geocities.com/ricardo_rios_sv/index.html

i'm getting the following error message from smbclient when doing tar backups. what exactly does this error message mean and how can i eliminate it? ERRDOS - ERRbadshare (The sharing mode specified for an Open conflicts with existing FIDs on the file.) opening remote file \windows\system32\config\software.LOG -- Todd Pfaff \ Email: pfaff@mcmaster.ca Computing and

...install R-1.6.2 did not show up. However there was one minor glitch: Some of the permissions on the files in the installed version (in /usr/local/lib/R) were wrong. E.g. here's a listing of /usr/local/lib/R/library: ===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+=== {erdos} /usr/local/lib/R/library ## ls -l total 28 drwxr-xr-x 10 root 512 Apr 16 15:52 KernSmooth/ drwxr-xr-x 13 root 512 Apr 16 15:52 MASS/ -rw-r--r-- 1 root 608 Apr 16 15:52 R.css drwx------ 11 root 512 Apr 16 15:52 base/ drwxr-xr-x 10 root 512 Apr 16 1...

Dear R, I'm doing some simulation work and it takes me a lot of time to do it in R. So I try to implement it in C code, but I want to use some R functions directly for my lazy and the robustness of code. For example, I will use lm and nlm in my program. How could I use R's lm and nlm function directly? I thinks these functions are not included in the R's include directory. Do I need

Hello there, I am using the igraph package to build graphs from my data. If I plot a graph though, it's not easy for me to see what's going on. Does anybody know how to rearrange a graph to get a plot without too many crossing lines? Maybe other packages? Thanks a lot in advance for any pointers, -- D --------------------------------- [[alternative

Yes, you're right. In fact, it's just an adaptation of a matlab command and the author advises using N^4 replications that's why it's the default in the function. The bistochastic matrix is not my subject of interest, but I need it to perform some random tranformation of a vector of incomes. Florent Bresson ----- Message d'origine ---- De : Richard M. Heiberger <rmh at

I have a graph with edge and vertex weights, stored in two data frames: --8<---------------cut here---------------start------------->8--- vertices <- data.frame(vertex=c("a","b","c","d"),weight=c(1,2,1,3)) edges <-

As I have previously asked, in response to a similar question: Is this a homework problem? cheers, Rolf Turner rolf at math.unb.ca

I'm experiencing a new and annoying phenomenon which seems to consist of an unfortunate interaction between R-1.7.0 and netscape version 7. When I invoke help.start(), a netscape window duly appears with the browser pointed at the file .../R/doc/html/index.html as one would hope and expect. However if I then ask for help on a function, e.g. > help(glm) the help does NOT get displayed

...ildren classes would match the rate of the parent class, allowing the parent class to distribute leftover bandwidth (ceil - rate) among the children classes." but this isn''t the case for the ultimate-tc script. -- Martin Martin.Ward@durham.ac.uk http://www.cse.dmu.ac.uk/~mward/ Erdos number: 4 G.K.Chesterton web site: http://www.cse.dmu.ac.uk/~mward/gkc/ _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

With the release of dovecot 2.0, the community of the Dovecot mailling list, and us at Shelton Computers, would sincerely like to thank the developers of Dovecot. For, if it were not for you, we would be stuck with Courier and would not have the impressive features of Sieve, as opposed to the unmanageable scripts, by end users, of maildrop. *Our gratitude goes to, but not limited to:* *Timo

Hi, I'me trying to write a function that will shuffle a vector. At the moment I'm baically making a vector of randomized indices and then making a new vector from the original one using these random indices. However, is there an alternative (more elegant) method to do this? I tried help.search('shuffle') but it does'nt return anything relevant. Thanks,

Dear all, I have encountered a strange problem with read.table(). When I try to read a tab delimited file I get an error message for line 260 not being equal to 14 (see below). Using count.fields() suggests that a number of lines have length not equal to 14, but not 260. Looking at the actual file, however, I cannot see anything wrong with any lines. They all seem to have length 14, there

I am (for my sins) having to do some work using R under Windoze. I wanted to set up a .Rprofile to control my set-up. The docs on .Rprofile say that it can/should be placed in ``the user's home directory''. ``An Introduction to R'' observes lucidly that this concept needs to be clarified under Windoze. Following the suggestions in An Introduction to R, I tried putting a

Dear R users, I?m a beginner user of R and I?ve a problem with permutations that I don?t know how to solve. I?ve 12 elements in blocks of 3 elements and I want only to make permutations inter-blocks (no intra-blocks) (sorry if the terminology is not accurate), something similar to: 1 2 3 | 4 5 6 | 7 8 9 | 10 11 12 ----------1st permutation 1 3 2 | 4 5 6 | 7 8 9 | 10 11 12 NO - - 3 2 1

...----- > >Message: 14 >Date: Sat, 14 Aug 2004 20:08:50 -0300 (ADT) >From: Rolf Turner <rolf at math.unb.ca> >Subject: Re: [R] How to display the equation of ECDF >To: y.benita at wanadoo.nl >Cc: r-help at stat.math.ethz.ch >Message-ID: <200408142308.i7EN8oEe006841 at erdos.math.unb.ca> > >Yair Benita wrote: > >> Using the ecdf (Empirical Cumulative Distribution Function) one can >> compute a plot. I was wondering if there is a way to get the equation >> used to draw the plot. > >?ecdf > >i.e. RTFM! > > cheers, > &...