Hello,
I'm new to R and work with psychometrics (Item response theory). I was using a package called "cirt" to model a data that contains only 0s, 1s and 9s. The package is basically used for Monte Carlo Markov Chain estimation of parameters and I specified 5000 iterations. The model seems to run fine but when I try to recover odds ratio statistics using the function "irtfit" (part of the cirt package), I keep getting the following error. I tried to already look on R mailing list serves to understand what this could possibly mean. My only understanding so far is that there is some entry in my data set that is not a 0, 1 or a 9..or that there's some spacing issue? I did check my data thoroughly though and there seems to be no issue. Odds Ratio Statistic item Error in rep("*", wholeWidths[i]) : invalid 'times' argument Can some one please advise? Any ideas would help. Thank you so much! Rohini Sen [[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.