Hi Jim, You don't mention whether you have any prior information regarding X2 that can be used to constrain values imputed for it. I think you will need some because without it values sampled for b and X2 respectively will just "see-saw" against each other.
Michael On 22 October 2010 18:37, Jim Silverton <jim.silver...@gmail.com> wrote: > Hello everyone, > I am trying to estimate the parameter b. > I have Y and X1 which I know and they are both random. However, I also have > X2 which I don't know and is also random. I want to estimat b from the > model: > > Y = b*X1 + ( 1 - b ) * X2 > > Can anyone offer some suggestions. The values of Y and X1 are both pvalues > so they are constrained in (0,1). > > -- > Thanks, > Jim. > > [[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-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.
