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...and has POSIXct as type. Fehler in dataprep(foo = INVESTMENTVOLUME, predictors = c("Predictor 1", : unit.variable not found as numeric variable in foo. I would be very grateful if you could help me with my problem. Thank you in advance for your efforts. Kind regards Nadja Delliehausen [[alternative HTML version deleted]]

Dear all I've got the dataset data:2743;4678;21427;6194;10286;1505;12811;2161;6853;2625;14542;694;11491; ?? ?? ?? ?? ?? 14924;28640;17097;2136;5308;3477;91301;11488;3860;64114;14334 I know from other testing that it should be possible to fit the data with the exponentialdistribution. I tried to get parameterestimates for the exponentialdistribution with R, but as the values of the parameter

...(est) Maximum likelihood estimation Call: mle(minuslogl = ll, start = list(alfa = 5, beta = 17)) Coefficients: Estimate Std. Error alfa 0.002143305 0.000378592 beta 0.660359789 0.026433665 -2 log L: 511.1296 thank you very much for all your comments, it really helps me to get further! Nadja

...er: http://www.crcpress.com/shopping_cart/products/product_detail.asp?sku=C962X <http://www.crcpress.com/shopping_cart/products/product_detail.asp?sku=C962X> Order Online at www.crcpress.com and apply 20% Off discount by entering promotion code 783EM during check out! Thank you. Nadja Nadja English Senior Marketing Manager CRC Press - Taylor & Francis Group an informa business 6000 Broken Sound Parkway NW, Suite 300 Boca Raton, FL 33487 Phone (561) 998-2525 FAX (561) 998-0876 nadja.english@taylorandfrancis.com <mailto:nadja.english@taylorandfrancis.com>...

...exponential- lognormal- or gammadistribution. as i've learnt the anderson-darling-test in R is only for normality and i am not supposed to use the kolmogorov-smirnov test of R for parameter estimates from sample data, is that true? can you help me, how to do this anyway! thank you very much! nadja

...by calculating shape<-(mean(data2))^2/var(data2) scale<-var(data2)/mean(data2) i get the idea what the parameters of the gammadistribution would be. but if i try using the method mle() i get stock and i don't know, how to make it work. can anybody help me? thank you very much, indeed. Nadja I tried so fare ll<-function(lambda,alfa) {n<-24 x<-data2 -n*alfa*log(lambda)+n*log(gamma(alfa))-(alfa-1)*sum(log(x))+lambda*sum(x) est<-mle(minuslogl=ll,start=list(lambda=29827.51,alfa=0.4954725)) summary(est) NaN's are produced with optim, i just don't know how to avoid th...

I can''t find network device in domU. Debian domU shows Configuring network interfaces...SIOCSIFADDR: No such device eth0: ERROR while getting interface flags: No such device and Fedora domU shows: eth0: unknown interface: No such device Dom0 is using Fedora with: kernel-xen-guest.i686 2.6.15-1.29_FC5 installed kernel-xen-hypervisor.i686

...hood method to estimate FRECHET parameters of my sample data. Should it work with fitdistr in the package MASS? I only find how to do it for GEV, Gumbel, and almost all other distributions, but FRECHET? I would be very happy if somebody can tell me how to do fit the FRECHET distribution! Thanks Nadja Riedwyl

Hello I use XEN 3.0 in debian sarge. I have a domU1 for routing and firewall. This domU1 use 2 network interfaces which is on a bridge ''gate'' and the other on bridge ''lan''. dumU2 use one interface (eth0) on bridge ''lan''. Then I make a ping out of domU2 to www.debian.de so I get no answer. The name isn''t resolved. A ping to IP of