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Hello, I am beginning with R and I would like to test a non linear model. But I do not find exactly wath I am looking for in nls packages (or I do not know where to search). I would like to try a model like this : y=b * x exp(n)/(a exp(n) + x exp (n)) Where a = a0 + a1z b= b0 + b1z x and z are variables y the variable that I am trying to modelise a0, a1, b0 and b1 are parameters to determine. I am wondering if I can use nls and if so how do I have to write my command ? Thanks in advance for your help. Cyrille Barn??rias Adjoint au chef d'??chelon interr??gion...

Hello all, I looking at package dse or vars or mAr I know how to simulate a VAR(p) process, my problem is that most of those processes are unstable (not weakly stationary). Do anybody know how to generate a random VAR (or VARMA even better) process that is weakly stationary? Thanks -- View this message in context: http://r.789695.n4.nabble.com/simulating-stable-VAR-process-tp4261177p4261177.html

Hi, I'm back on the list ;-) I seem to be having some trouble getting W2K machines to join the domain in 3.0.1rc2. I haven't looked at this in detail since 2.2.8a but it looks like the account gets created in LDAP and then it has trouble setting the password appropriately. I believe this is the relevant part of the log: api_rpcTNP: samr op 0x3a - api_rpcTNP: rpc command:

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