search for: refletions

Dear User, I got the following error running a regression quantile: > rq1<-rq(dep ~ ., model=TRUE, data=exo, tau=0.5 ); > summary(rq1) Erro em rq.fit.fnb(x, y, tau = tau + h) : Error info = 75 in stepy: singular design Any hint about the problem? Thanks a lot, ________________________________________ Ricardo Gon?alves Silva, M. Sc. Apoio aos Processos de Modelagem Matem?tica

Dear R-Users, How can I compute simple moving averages from a time series in R? Note that I do not want to estimate a MA model, just compute the MA's given a lenght (as excel does). Thanks ________________________________________ Ricardo Gonçalves Silva, M. Sc. Apoio aos Processos de Modelagem Matemática Econometria & Inadimplência Serasa S.A. (11) - 6847-8889 ricardosilva@serasa.com.br

Hi, I load my data set and separate it as folowing: presu <- read.table("C:/_Ricardo/Paty/qtdata_f.txt", header=TRUE, sep="\t", na.strings="NA", dec=".", strip.white=TRUE) dep<-presu[,3]; exo<-presu[,4:92]; Now, I want to use it using the wls and quantreg packages. How I change the data classes for mle and rq objects? Thanks a lot,

...10^-2 for CSD/HSCDS in transparent mode, and from 10^-9 to 10^-6 for UMTS/HSDPA. It depends on signal quality and if you're walking/standing or if you're in real mobility (for example talking while driving a car), etc... So it depends. For example, if it is raining, the water causes lots of refletions and rises the BER. Rural environments has less BER than urban ones. In order to undestand your 4 points i suppose i need to study CELP becouse i'm not understanding right now. Have you other suggestions given these informations? Thanks. ___________________________________ L'ema...

...10^-2 for CSD/HSCDS in transparent mode, and from 10^-9 to 10^-6 for UMTS/HSDPA. It depends on signal quality and if you're walking/standing or if you're in real mobility (for example talking while driving a car), etc... So it depends. For example, if it is raining, the water causes lots of refletions and rises the BER. Rural environments has less BER than urban ones. In order to undestand your 4 points i suppose i need to study CELP becouse i'm not understanding right now. Have you other suggestions given these informations? Thanks. L'email della prossima generazione? Puo...

I am trying to connect to a samba server (hosted by a unix platform; for which I have also ftp and telnet access). I have problems with accents in filenames: when I issue the command mount -t smbfs -o 'username=oesser,password=xxxxxxxx,iocharset=iso8859-1,codepage=iso8859-1,uid=oesser,gid=oesser,dmask=700,fmask=700' //nestor.ulb.ac.be/oesser /mnt/nestor all works fine but if I put

Does anyone has already tried to use R with an object database such as O2 or objectore, or versant ? Does anyone knows an api to store R object in such a database and to load R object from such a database ? -------------------------------------------------------- Ce message et toutes les pieces jointes peuvent etre confidentiels, et, de plus, peuvent etre couverts par un privilege ou une

Hello, For basic date time arithmetics operations, AFAK, there're actually the function difftime() and the (dt + num) operations. I'm wondering if other basic operations exist, like add(dt, num, unit) where unit would be "y", "q", "m", etc. Also for the function seq.dates (or seq.POSIXt), the case for by="months" would be more useful if it

Hello, For basic date time arithmetics operations, AFAK, there're actually the function difftime() and the (dt + num) operations. I'm wondering if other basic operations exist, like add(dt, num, unit) where unit would be "y", "q", "m", etc. Also for the function seq.dates (or seq.POSIXt), the case for by="months" would be more useful if it

A nightly scripted rsync backup job is giving me this error WARNING: vm/escDebLenny14G-flat.vmdk failed verification -- update discarded (will try again). I've searched the web and I think probably the problem is the source file changed during the copy. However, I haven't seen any explanations for the "will try again" part. Does it try again immediately? If so, does a