search for: cryer

...ime series of fishing data from several species (landings and cpue) investigating the correlation between them and with environmental factors (water temperature, wind, etc.). Searching at Amazon I found three books with examples in R: Time Series Analysis: With Applications in R by Jonathan D. Cryer and Jonathan D. Cryer Time Series Analysis and Its Applications: With R Examples by Robert H. Shumway and Robert H. Shumway Introductory Time Series with R (Use R) by Paul S.P. Cowpertwait and Andrew V. Metcalfe I would like to receive any suggestion of which is most appropriate for a non-st...

...ot an accurate error. I searched the mailing lists and bug-tracker, and only found this similar bug: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1640 Any idea what's going on? Is this just a benign error since the cluster still seems to be working, or ? Thanks P -- http://philcryer.com

Hi, The default value for lag.max in ACF implementation is 10*log10(N) There several publications recommending setting lag.max to: - N/4 (Box and Jenkins, 1970; Chatfield, 1975; Anderson, 1976; Pankratz, 1983; Davis, 1986; etc.) - sqrt(N)+10 (Cryer, 1986) - 20<=N<=40 (Brockwell and Davis) Why R uses 10*log10(N) as a default? Please, give me a reference to a book or article where the recommendation for using lag.max=10*log10(N) is proposed and explained. Thanks Rafal

...ete grabby.sh status grab42: grabby.sh status I have glusterfsd running in debug mode, but it's not giving me any details. I've stopped, restarted glusterfsd, unmounting and remounting the glusterfs shares after that. What is happening and how can I fix it? Thanks. P -- http://philcryer.com

...n of the various models (the different model specifications dropped variables or added additional covariates, etc, without changing the general structure of the syntax below), I defined the following design matrix: > xreg.1 <- model.matrix(~CO1+ CO2+ CO3+ CO4)[,2:5] c. Following Cryer and Chan (2008, ch. 11, p. 255), I wrote models such as this: > arimax.1 <- arimax(VI, order=c(0,1,1), + xtransf=data.frame(xreg.1,dummy1=DUM), + transfer=list(c(1,0),c(0,0),c(0,0),c(0,0),c(0,0))) d. So, I get estimates for the following coefficients: ma1; CO1-AR1; CO1-MA0; C...

Hi, could anyone tell me how predict() predicts the new value(s), of a MA(1) arima-modell. its really easy to make it with an AR(1), knowing the last term, but how can i or R know the last error? It would also help if somebody could tell me how to find the "open" source of the function predict(). Thanks and sorry for my poor english. -- View this message in context:

...nt/data20 clustr-01:/mnt/data21 clustr-02:/mnt/data21 clustr-03:/mnt/data21 clustr-01:/mnt/data22 clustr-02:/mnt/data22 clustr-03:/mnt/data22 clustr-01:/mnt/data23 clustr-02:/mnt/data23 clustr-03:/mnt/data23 clustr-01:/mnt/data24 clustr-02:/mnt/data24 clustr-03:/mnt/data24 Thanks P -- http://philcryer.com

Hola usuarios, Necesito detectar si existe o no un cambio de tendencia y si dicho cambio es significativo, para una serie temporal del tipo AirPassengers, en la que a partir de un determinado momento se ha hecho una campaña (supongamos que una promoción de vuelos). Para ello he pensado varios métodos: Usar la descomposición espectral de la muestra [decompose(AirPassengers)] y luego una Regresión

...n Excel97 or > Excel2000... In any case, the journal's scope was biological in > nature and the article was of interest since Excel is heavily used in > that community. An excellent source of information about the incompetence of Excel as a statistical package can be found on Jonathan Cryer's web page at http://www.stat.uiowa.edu/~jcryer/JSMTalk2001.pdf Some incredible howlers from their ``help'' pages are given, as are a number of useful references. (None from the biological literature however. If David Paul could dig up the reference mentioned by his biologist frien...

Sorry to be off-topic. Can somebody please explain me what is Portmanteau test? Why it's name is like that? When I would say, a particular test is portmanteau test? I did some googling but got no satisfactory answer at all. Please anybody help for understanding that? Regards, -- View this message in context:

Dear R users, I have started work in a Statistics government department and I am trying to convince my bosses to install R on our computers (I can't do proper stats in Excel!!). They asked me to prove that this is a widely used software (and not just another free-source, bug infected toy I found on the web!) by suggesting other big organisations that use it. Are you aware of any reputable

Hello, I am trying to collect several global measures or statistics for time-series as well as packages of R that can compute them. I have found several of them in papers and books, but the literature is so big i am sure i am missing several of them. skewness kurtosis min max mean SD trend seasonality periodicity chaos (Lyapunov Exponent) / Largest Lyapunov Exponent (i think is the same

...; Excel ???97 > >B.D. McCullough and B. Wilson, (1999), Computational > Statistics & Data > >Analysis, 31, pp 27-37 > >http://www.elsevier.com/gej-ng/10/15/38/37/25/27/article.pdf > > > > > >Problems with using Microsoft Excel for statistics > >J.D. Cryer, (2001), presented at the Joint Statistical > Meetings, > >American Statistical Association, 2001, Atlanta Georgia > >at http://www.stat.uiowa.edu/~jcryer/JSMTalk2001.pdf > > > > > >Use of Excel for statistical analysis > >Neil Cox, (2000), AgResearch Ruakura...

Hi, I want to fit the following model to my data: Y_t= a+bY_(t-1)+cY_(t-2) + Z_t +Z_(t-1) + Z_(t-2) + X_t + M_t i.e. it is an ARMA(2,2) with some additional regressors X and M. [Z_t's are the white noise variables] How do I find the estimates of the coefficients in R? And also I would like to know what technique R employs to find the estimates? Any help is appreciated. Thanks,

Hi Is there clean way to ensure that a glusterfs mount point specified in /etc/fstab is mounted automatically on boot under debian lenny when referencing a remote node for the volfile? In my test case everytime I reboot, the system tries to mount the filesystem before the backend 10ge interface comes up so it gets a "No route to host" and immediately aborts. I know I can dump a mount

...50:30] W [posix.c:246:posix_lstat_with_gen] posix23: Access to /mnt/data23//.. (on dev 16771) is crossing device (2065) What do I have setup incorrectly here? My config files are below, thanks. # cat /etc/glusterfs/glusterfs.vol ######################################## ## glusterfs.vol ## phil.cryer at mobot.org ######################################## # 128.128.164.74 clustr-01 # 128.128.164.89 clustr-02 # 128.128.164.215 clustr-03 # 128.128.164.217 clustr-04 # 128.128.164.218 clustr-05 # 128.128.164.219 clustr-06 ######################################## # RAID 1 # TRANSPORT-TYPE tcp...

Given that we occasionally run into problems with comparing Excel results to R results, and other spreadsheet-induced errors, I thought this might be of interest. http://www.nextnewdeal.net/rortybomb/researchers-finally-replicated-reinhart-rogoff-and-there-are-serious-problems The punchline: "If this error turns out to be an actual mistake Reinhart-Rogoff made, well, all I can hope is that

...a from several species (landings and cpue) investigating the > correlation between them and with environmental factors (water > temperature, wind, etc.). > > Searching at Amazon I found three books with examples in R: > > Time Series Analysis: With Applications in R by Jonathan D. Cryer and > Jonathan D. Cryer > > Time Series Analysis and Its Applications: With R Examples by Robert > H. > Shumway and Robert H. Shumway > > Introductory Time Series with R (Use R) by Paul S.P. Cowpertwait and > Andrew V. Metcalfe > > I would like to receive any suggest...

...built on Jan 16 2011 18:14:56 Repository revision: v3.1.1-64-gf2a067c Copyright (c) 2006-2010 Gluster Inc. <http://www.gluster.com> GlusterFS comes with ABSOLUTELY NO WARRANTY. You may redistribute copies of GlusterFS under the terms of the GNU Affero General Public License. P -- http://philcryer.com