Dear Lian, You might be interested to hear that a new package is available on CRAN to perform Bayesian estimation of true prevalence from apparent prevalence: http://cran.r-project.org/package=prevalence <http://cran.r-project.org/package=prevalence> The function 'truePrev()', that estimates true prevalence from individual samples, is also implemented as an online Shiny application: http://users.ugent.be/~bdvleess/R/prevalence/shiny/ <http://users.ugent.be/~bdvleess/R/prevalence/shiny/> Best wishes, Brecht LianD wrote
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
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