Re: [R] Question about food sampling analysis

2010-07-14 Thread kMan
Dear Sarah, [snip...] "I know that samples within each facility cannot be treated as independent, so I need an approach that accounts for (1) clustering within facilities and" You could just use lm() & some planning. The data from within a specific facility can be fit with a model to generate par

Re: [R] Question about food sampling analysis

2010-07-13 Thread Sarah Henderson
e > Chippenham > Wilts > SN15 1BN > UK > > > -Original Message- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] > On Behalf Of Sarah Henderson > Sent: 12 July 2010 22:42 > To: R List > Subject: [R] Question about food samplin

Re: [R] Question about food sampling analysis

2010-07-13 Thread Richard Weeks
Henderson Sent: 12 July 2010 22:42 To: R List Subject: [R] Question about food sampling analysis Greetings to all, and my apologies for a question that is mostly about statistics and secondarily about R. I have just started a new job that (this week, apparently) requires statistical knowledge

[R] Question about food sampling analysis

2010-07-12 Thread Sarah Henderson
Greetings to all, and my apologies for a question that is mostly about statistics and secondarily about R. I have just started a new job that (this week, apparently) requires statistical knowledge beyond my training (as an epidemiologist). The problem: - We have 57 food production facilities in