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...analysis, and computes a statistic 1000 times. Therefore, for each condition, I will have 1000 statistic values. My question is what's the best way to store the 1000 statistic for each condition. Any suggestion on how to manage such simulation studies is greatly appreciated. Thanks, -- Davood Tofighi Department of Psychology Arizona State University [[alternative HTML version deleted]]

Hello, II used the logLik() function to get the log-likelihood estimate of an object. The function also prints the degrees of freedom. How can I extract the degrees of freedom and assign it to a variable. Below is the output: > logLik(fit2pl) 'log Lik.' -4842.912 (df=36) Thanks, Davood Tofighi [[alternative HTML version deleted]]

Hello All, I was wondering how I can get the overall Pearson chi^2 test of model fit with its df and p value in the LTM package for the 2PL models. Thanks, -- Davood Tofighi Department of Psychology Arizona State University [[alternative HTML version deleted]]

...e other variables? require(adapt) fn<-function(z,y,x) {exp(x^3+y^4+x^2*y+x*z^2+y/z)} x<-runif(200);y<-runif(200);z<-runif(200); c1<-.5;c2<-5;M<-100; #M to represent infinity i1<-adapt(3,lo=c(.0001,0,0),up=c(M,c1*z,c2/y),functn=fn)$value print(i1); Thanks, -- Davood Tofighi [[alternative HTML version deleted]]

...Group Geospatial & Earth Monitoring Division Geoscience Australia (www.ga.gov.au) Cnr. Jerrabomberra Av. & Hindmarsh Dr. Symonston ACT 2601 Ph. (02) 6249-9155 -----Original Message----- From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Davood Tofighi Sent: Tuesday, 4 March 2008 11:06 To: r-help at r-project.org Subject: [R] simulation study using R Dear All, I am running a Monte Carlo simulation study and have some questions on how to manage data storage efficiently at the end of each 1000 replication loop. I have three conditions coded usin...

...ls. [1] http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example [2] http://adv-r.had.co.nz/Reproducibility.html [3] https://cran.r-project.org/web/packages/reprex/index.html -- Sent from my phone. Please excuse my brevity. On June 20, 2017 11:15:23 AM PDT, Zahra Tofighi <tofighizahra at gmail.com> wrote: >hello, > >I have a graph and i use qgraph package to calculate centrality >parameters. >Now I want to know the maximum value of shortest path for each vertex >with >discarding the Inf value in short pathes. For this I use the >Shorte...

hello, I have a graph and i use qgraph package to calculate centrality parameters. Now I want to know the maximum value of shortest path for each vertex with discarding the Inf value in short pathes. For this I use the ShortestPathLengths of centrality function in qgraph. but when I want to get the maximum the result is wrong. here is my code: cen<-centrality(Q)

Hello, I'm using filehash on the windows XP and it has been working fine with the newest R version 2.6.2. However, on the windows vista, when I ran the same code, I got the following error: > dbCreate("simdb") #create simdb database [1] TRUE > db<-dbInit("simdb") #initiate an object of database Error in sprintf(gettext(fmt, domain = domain), ...) : object

hello, i want to use igraph for drawing graph of my data. First time i try do it and it was successful. but now i want to test again i got this error: "edges must be numeric or character". this is my edge list(this is output from R): From To 1 US20100331312 2 US20100331341 3 US20100330919 US20100041339 4 US20100330919 US20100195590 5 US20100330919