R help - Jul 2003 - RE: how to use R to model Reliability problem

Dear R users:

I am having problem with following datasets:

4 true measurement:         2     10   15   20

10 repeated measurements for each true measurement

                                   1.9   9.8 14.5 20.2
                                   2.1  10   15    20.1
                                   ....
                                   2.1  9.9  15.1 20.3

how can I use R to model a mixed model and estimate mean/variance of measurement
error and get a 95%CI for each group mean.
                          
any suggestion will be appreciated.

L.P  
	[[alternative HTML version deleted]]

Did you try "www.r-project.org" -> search -> "R site
search" for
"varcomp"?  If yes, could you please explain why that does not answer 
your question?  Please include in your reply a toy example including a 
"data.frame" statement, preferably with something closer to 6 numbers 
than 40 AND some R commands you have tried that didn't work.  This will 
make it vastly easier for someone to understand what you want and try to 
help.

I hope this helps.
Spencer Graves

liping wrote:
> Dear R users:
> 
> I am having problem with following datasets:
> 
> 4 true measurement:         2     10   15   20
> 
> 10 repeated measurements for each true measurement
> 
>                                    1.9   9.8 14.5 20.2
>                                    2.1  10   15    20.1
>                                    ....
>                                    2.1  9.9  15.1 20.3
> 
> how can I use R to model a mixed model and estimate mean/variance of
measurement error and get a 95%CI for each group mean.
>                           
> any suggestion will be appreciated.
> 
> L.P  
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://www.stat.math.ethz.ch/mailman/listinfo/r-help