Hi Sarah, We regularly undertake work in the food sector and have developed many custom built solutions. To be more specific, the statistics we employ is that of sensory analysis and we regularly use the sensominer package in R.
Regards, Richard Weeks Mangosolutions data analysis that delivers Mail: rwe...@mango-solutions.com T: +44 (0)1249 767700 F: +44 (0)1249 767707 M: +44 (0)7500 040365 Unit 2 Greenways Business Park Bellinger Close 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 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 beyond my training (as an epidemiologist). The problem: - We have 57 food production facilities in three categories - Samples of 4-6 different foods were tested for listeria at each facility - I need to describe the presence of listeria in food (1) overall and (2) by facility category. 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 (2) the different number of samples taken at each facility. If someone could kindly point me towards the right type of analysis for this and/or its associated R functions/packages, I would greatly appreciate it. Many thanks, Sarah [[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. LEGAL NOTICE This message is intended for the use o...{{dropped:9}} ______________________________________________ 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.
