Awesome, thankyou! From: Joshua Wiley [mailto:jwiley.ps...@gmail.com] Sent: Wednesday, 3 September 2014 12:04 PM To: Lucy Leigh Cc: r-help@R-project.org Subject: Re: [R] Simulating from a Weibull distribution
Hi Lucy, Try the gamlss.dist package, specifically the rWEI2() function. Cheers, Josh On Wed, Sep 3, 2014 at 11:52 AM, Lucy Leigh <lucy.le...@newcastle.edu.au<mailto:lucy.le...@newcastle.edu.au>> wrote: Hi, I wish to simulate some data from a Weibull distribution. The rweibull function in R uses the parameterisation 'with shape parameter a and scale parameter b has density given by f(x) = (a/b) (x/b)^(a-1) exp(- (x/b)^a)'. However, it would be much more useful for me to simulate data using a different parameterisation of the Weibull, with shape a1 and scale b1, namely f(x) = a1*b1*x^(a1-1)exp(-b1*x^a1). However I'm not sure how to do this, as I have only ever used the random generators that come pre-programmed in R. Is there a package or example someone can point me to that demonstrates how to simulate data from any given distribution? Cheers, Lucy [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org<mailto: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. -- Joshua F. Wiley Ph.D. Student, UCLA Department of Psychology http://joshuawiley.com/ Senior Analyst, Elkhart Group Ltd. http://elkhartgroup.com Office: 260.673.5518 [[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.
