search for: lopar

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2000 Jan 12
0
Problems creating a random sample
> Date: Wed, 12 Jan 2000 13:05:21 +0100 (CET) > From: Adriane Leal <loparic at student.fsa.ucl.ac.be> > To: r-help at stat.math.ethz.ch > Subject: [R] Problems creating a random sample > > Hi! > > I'm supposed to create a random sample bivariate normal variates of size > equal to 250 with mean vector (-1,1) and cov matrix (1,0.95,0.95,1) &...
2000 Feb 02
1
No subject
Dear fellows, I'd like to perform a box-cox transformation to a data set and also plot lambda versus L(lambda) using R. Does anybody knows how can I do such a thing? Greetings to all, Adriane -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help",
2000 Feb 02
0
Deleting a component with a known probability
Here I'm again! Imagine you have a bivariate normal sample (n=500) , with mean vector=(0,0)T and Covariance matrix (1,.9,.9,1). How could I construct an incomplete sample by deleting the second component Yi1 with probability: Pi= (e**2Yi1)/(1+e**2Yi1) ? best regards, Adriane -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read