
Hi, Dear all R experts,
 
   I could use the fitdistr() function to estimate the parameters in a univariate weibull distribution,but for the bivariate case it doesn't work.
Is there a function in R to estimate the parameters in a bivariate weibull distribution, given I have a set of observations (x,y) and I know the pdf of this distribution?
   By the way, does someone know how to get the bivariate kaplan-meier estimator of P(X>x,Y>y)? Thanks a lot!!!
 
Cheers,
Lucy
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