prof brian ripley ripleystatsoxacuk loglikelihood sum values dweibullx logtrue wed 6 aug 2008 rkevinburtoncharternet wrote likelihod function weibull distribution r found following reference httpwwwweibullcomlifedatawebweibull_log_likelihood_functions_and_their_partialshtm hard time understanding parameters required particularly number groups timestofailure data points number groups suspension data points number interval failure data groups maybe likelihood function within r documentation little better contain examples would like likelihood function bayesian inference weibull distribution seems closely resemble prior data distribution thank kevin brian ripley ripleystatsoxacuk professor applied statistics httpwwwstatsoxacukripley university oxford tel 44 1865 272861 self 1 south parks road 44 1865 272866 pa oxford ox1 3tg uk fax 44 1865 272595 ______________________________________________ rhelprprojectorg mailing list httpsstatethzchmailmanlistinforhelp please read posting guide httpwwwrprojectorgpostingguidehtml provide commented minimal selfcontained reproducible code wed 06 aug 2008 163548 0100 r weibull likelihod function