search for: acumulate

Hi R users: f1<-function(l1,idx){   f2<-function(i,l1)   l1[[i+1]]<<-c(l1[[i]],l1[[i+1]][-1])   lapply(idx,f2,l1)   return(l1) } l<-list(c(1,2,3),c(4,5),c(6,7,8)) l2<-f1(l,1:(length(l)-1)) l2 I got: [[1]] [1] 1 2 3 [[2]] [1] 1 2 3 5 [[3]] [1] 4 5 7 8 But what I want in the last position of l2 is the acummualte of the assignations... I would like to have: [[1]] [1] 1 2

Hello: In the example below (or for a censored data) using survfit.coxph, can anyone point me to a link or a pdf as to how the probabilities appearing in bold under "summary(pred$surv)" are calculated? Do these represent acumulative probability distribution in time (not including censored time)? Thanks very much, parmee *fit <- coxph(Surv(futime, fustat) ~ age, data = ovarian)*

Hola, Tengo un conjunto de bases de datos de una encuesta industrial para diferentes años (1995-2014). Las bases de datos están en formato .mdb. A su vez, cada base de datos tiene 3 tablas con una variable "ID" común (la "llave") para vincular las tablas. Quiero realizar análisis estadísticos para analizar la evolución de ciertas variables. Quiero armar un dataframe que

Hi dear R-users: I have the following problem: I have a list of data.frames (12 variables and 60000 rows, each) I have to merge from an specific point of the list to the end of the list, I am doing so with a for() loop but it is too inefficient and it exhausts memory. How can I convert this for() loop in a function and then use lapply?

Hello all, A client of us, is thinking to migrate their actual PBX to a Cisco CallManager. We want to sell him an asterisk box to complement the Cisco PBX. I think to use asterisk as a Voicemail server (Replazing the Cisco Unity) Has asterisk all the functionalities to replace a CIsco Unity server? Which functionalities Cisco Unity has than asterisk could cover? How could asterisk complement the