search for: gomin1sd

Displaying 2 results from an estimated 2 matches for "gomin1sd".

2012 Apr 05
1
is parallel computing possible for 'rollapplyr' job?
...unction like sfRollapplyr or I have to change my code in a way that it utilizes lapply, or sapply instead of 'rollapplyr' first then use sfInit, sfExport, and sfLapply,.. for parallel computing. I could not perform either so please help me :)   ## nc<-313 rs<-500000 ema<-10 h<-4 gomin1sd<-function (x,rho) { getOutliers(as.vector(x),rho=c(1,1))$limit[1] } dim(dt_l1_inp) [1] 500000 312 dt_l1_min1<-matrix(nrow=rs, ncol=nc-1-(ema*h)) for (i in 1:rs) { dt_l1_min1[i,]<-rollapplyr(dt_l1_inp[i,], FUN=gomin1sd, width=ema*h+1) } ##    [[alternative HTML version deleted]]
2012 Mar 25
2
avoiding for loops
I have data that looks like this: > df1 group id 1 red A 2 red B 3 red C 4 blue D 5 blue E 6 blue F I want a list of the groups containing vectors with the ids. I am avoiding subset(), as it is only recommended for interactive use. Here's what I have so far: df1 <- data.frame(group=c("red", "red", "red", "blue",