Hi,all, I posted this question couple of days again, but haven't gotten any answers back. I would like to post it again, and if you have any ideas, please let me know. Any helps and suggestions are very much appreciated.
The problem is about linear regression with both y and x have measurement, and the variance of errors are heterogeneous. The estimated regression coefficient and its variance are of interest. Is any R package doing this task ? Thank you Carrie-- [[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.