Re: [R] Bayesian estimate of prevalence with an imperfect test

2012-01-06 Thread LianD
Thanks Bert I've been through my variables again and have managed to get the code working - shouldn't have tried to deal with it at the end of the day yesterday! all the best Lian -- View this message in context:

[R] Bayesian estimate of prevalence with an imperfect test

2012-01-05 Thread LianD
Hi all! I'm new to this forum so please excuse me if I don't conform perfectly to the protocols on this board! I'm trying to get an estimate of true prevalence based upon results from an imperfect test. I have various estimates of se/sp which could inform my priors (at least upper and lower

[R] epi.conf

2011-12-30 Thread LianD
Hi all! I was wondering if anyone could help me. I'd like to calculate prevalence and confidence interval for a clustered sample (design effect estimated at 2). In the old version of epiR the epi.conf function allowed for the design effect argument, but in the new version this doesn't seem