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...nd the distribution has much longer tails. (The distribution is quite symmetrical) Can anyone suggest any distributions I could fit to this data, and better still how I can then generate random data from this 'distribution' using R? ----------------------------------------------- Dr. David Crabb School of Science, The Nottingham Trent University, Clifton Campus, Nottingham. NG11 8NS Tel: 0115 848 3275 Fax: 0115 848 6690

...d by two straight lines. Is there a way of fitting a linear model to give me a bilinear fit and (more importantly) automatically determine the 'cut off' point? I would also want some statistic to convince myself that the bilinear fit is better. Many thanks for your help. David Dr. David Crabb Department of Optometry and Visual Science, City University, Northampton Square, London EC1V OHB Tel: 44 207 040 0191 d.crabb at city.ac.uk http://www.city.ac.uk/optometry/html/david_crabb.html

...R and wonder how I can simply go about fitting this model and looking at the significance of the estimates in R. I also have a plot in my mind - 62 little regression lines (n=5) and think that this might be informative..... Any help or pointers will be gratefully received - Many Thanks. Dr. David Crabb Department of Optometry and Visual Science, City University, Northampton Square, London EC1V OHB Tel: 44 207 040 0191 d.crabb at city.ac.uk http://www.city.ac.uk/optometry/about/staff/crabb.html

...function. In other words we don't simply want to use 84 single values from the 84 subjects but use all the data (but we are aware this needs to be corrected for). Any help, however small, with this problem will be gratefully received. ----------------------------------------------- Dr. David Crabb School of Science, The Nottingham Trent University, Clifton Campus, Nottingham. NG11 8NS Tel: 0115 848 3275 Fax: 0115 848 6690

I hope you can help with what might be an easy query. I am doing some simple simulations where I am generating series of data from a normal distribution using rnorm. I am then treating these as a time series. I want to know how I can incorporate correlation in the series (autocorrelation) i.e. make the observations non-independent, with a known (but simple) correlation structure. In other words I

Greetings, I'd like to set up samba to use group and user credentials from our windows domain in mixed mode. I want to be able to give windows users rights to samba file shares without having to set them up with a Unix account locally. If a user does have a local Unix account I'd like to be able to use the local account for permissions. Is this possible with winbind? I've set up