Displaying 2 results from an estimated 2 matches for "dt_l1_min1".
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dt_l1_inp
2012 Apr 05
1
is parallel computing possible for 'rollapplyr' job?
...#39;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",