similar to: Sampling from a population

Has anyone written a function that returns all possible subsets of r elements out of a vector that contains n elements? I have not been able to find an answer in the FAQ or the archives. Say I have a vector: letters[1:10]. I want to get a matrix of 120 rows that contains all possible subsets of 3 letters out of the 10. And I would like to be able to generalize to any r out of n, like

Hello, I am trying to model a bivariate time series called 'residuals' as a dcc-garch model. I want to use the function dcc.estimation(a, A, B dcc.para, dvar, model) to estimate the parameters. No matter how I tried to define a, A and B, I always got the message "Error in constrOptim(theta = para, f = loglik.dcc2, gr = grad.dcc2, ui = resta, : initial value not

Hola a todos, Tengo la siguiente inquietud, espero me puedan ayudar. Tengo una base de datos de la que estoy haciendo varios cálculos. Uno de ellos es la diferencia entre tiempos para conocer la duración de un evento. Aquí usé el paquete lubridate para tener fecha y hora en el formato adecuado. Cuando hago el calculo obtengo algo como esto: > (BASE$Time2[518]-BASE$Time2[516]) Time difference

Hi, I apologize for a portuguese message at this group, but I am trying to reach brazilians who read this great group. It''s about the release of the first Ruby on Rails book for the brazilian audience. Here it goes: Galera, finalmente terminei de escrever o livro e entreguei o material para a editora esta semana, agora resta esperar at? que eles nos digam quando ser? a data do

Hola Javier, Muchas gracias por responder tan rápido! Yo trabajo en Mac OS X 10.9.4. Versión 0.98.953 de RStudio. Versión 3.0.2 (2013-09-25) de R. ## Este es el script que estoy trabajando. Se trata de una rutina para automatizar el cálculo de la duración del evento. setwd("/Users/angelacamargosanabria/Documents/ANGELITA/1-DOC/1-TESIS/4-PAPERS/1-Mamiferos/DATOS/Bases") BASE <-

Hello, I've got a centos 4.4 box and i'd like to make some rpms for it. My first task is to recompile an srpm removing some options to customize it. I tried rpmbuild, which worked on a fedora install, but that command wasn't available. What rpm do i have to install to make rpms? I've got rpmdb, rpm, and rpm-libs already installed. I thought the missing one was rpm-utils,

Hola, Construyo un gráfico utilizando layout y manejando convenientemente los mar y oma para luego ubicar los plot y las líneas de texto. El caso es que si ejecuto ese mismo código en un netbook (indicando windows(width=8.27, height=11.69) igual que en el pc), me da el típico error de plot.new : márgenes de figura muy grandes. ¿Cómo puedo hacer para solucionarlo?. ¿O no tiene solución?. Gracias.

Hi folks, Anyone know the whereabouts of libgtkembedmoz.so()(64bit) as it is needed by miro-1.0-1.el5.rf.x86_64 (rpmforge) I tried a whatprovides and have looked at epel as well as rpmforge - no luck. While I'm asking, I'm looking for an internet HD TV viewer - miro looked interesting - any other products you know of? TIA Rob -------------- next part -------------- A non-text attachment

Hola: Os pido mil disculpas porque mi consulta está fuera de tema, pero necesito ejecutar un programa en Mac y mi equipo es windows. ¿Cómo puedo emular Mac?. Gracias. Eva [[alternative HTML version deleted]]

On 4/8/06, Dmitry Morozovsky <marck@rinet.ru> wrote: > On Fri, 7 Apr 2006, Mars G. Miro wrote: > > MGM> Greetz! > MGM> > MGM> I have an HP DL145 that I'm having problems with when connecting via > MGM> serial console. I think it's acpi-related. This is on 6.1-BETA4/amd64 > MGM> (5.X is the same also) > > [snip] > > It seems it's

Estimada comunidad, tengo un problema que no puedo resolver. Tengo muchos archivos (los llamaremos "TMP") con los que debo construir un archivo resumen que llamare "DAT". A partir de los nombres de los archivos TMP construyo las primeras 4 columnas de DAT, luego, con datos del interior del archivo TMP construyo las columnas 5 a 9 de DAT. El problema insoluble que tengo es que

Hello, I am having a problem destroying zfs snapshots. The machine is almost not responding for more than 4 hours, after I started the command and I can''t run anything else during that time - I get (bash): fork: Resource temporarily unavailable - errors. The machine is still responding somewhat, but very, very slow. It is: P4, 2.4 GHz with 512 MB RAM, 8 x 750 GB disks as raidZ,

Will someone please help me get past this error Code: libGL warning: 3D driver claims to not support visual 0x64 [/code]

Muchas gracias a tod en s por las respuetas! tengo en una variable wb una tabla con 145 filas y 17 columnas. dim(wb) 145 17 Creo una variable Serie16, la cual resulta de dividir la columna 3 y la 12. Serie16 <- c(wb[3]/wb[12]) Serie16 Aquí viene el problema. La dimensión de la nueva columna, pensaba que seria 145 filas y 1 columna. Le doy a dim, y me devuelve el valor NULL. Por qué? he

Hi, We have potential client which would like to offer to him VoIP solution for 2000 subscribers (SIP based Phones) and 2 x PRI ISDN interfaces to the PSTN. In the next stage the subscribers will be increased up to 13,000. Because I am not haven't done similar big project I don't know how to calculate the price. The one way is using number of subscribers and the other is using PSTN

On Mon, 29 Jun 2020 at 14:25, Jos? Ab?lio Matos <jamatos at fc.up.pt> wrote: > > Again you guessed right, that was the main idea. :-) > As I told above and to reiterate it, the idea of this work is to make it easier to automate the > process. Similarly to how we do the mass builds for all the packages. But the mass rebuild process is very different, because releng doesn't

I just finished using my mother's PC which is running Windows XP. I downloaded & installed, or already had installed, the latest versions of VLC Media Player (1.0.5), Media Player Classic - Home Theater (last release was in August 2009), Miro (already installed), Mozilla Firefox (3.6), Google Chrome (latest from website today), Opera (10.50 Alpha, latest build from the website), and

Hi, I would like to ask you for advice how to solve the following case: I have a client (who happened to be my friend) and I have convinced him that the IP PBX solution is much better than the conventional telephone centrals (PBX). At the beginning he wanted to buy PBX Panasonic, but at this moment he is waiting for my decision. Because at the moment we are not so deeply familiar with these

Dear Rubyians, I am facing problems to send Html Email scnce one month. I changed the content type is text/html and charecter set "utf-8" I worte the html code in the confirm.heml in the action mailer folder. but mail is going with html code Exapmle: <html border="2"> <tr><td></td></tr></html> code in the confirm .html In the

Hola, # Hacemos el KED. Ver función "krige()": KED.rad <- krige( formula=pluvPcp~layer, # covariable -> radar locations=lluvia.rad.pluv.spdf, newdata=radarGrid, # podría ser cualquier objeto Spatial model=v.fit, # modelo de semivariograma. maxdist=Inf