Cbind vektory různých délek r
Příklady kódu
cbind vektory různých délek r
bind.pad <- function(l, side="r", len=max(sapply(l,length)))
{
if (side %in% c("b", "r")) {
out <- sapply(l, 'length<-', value=len)
} else {
out <- sapply(sapply(sapply(l, rev), 'length<-', value=len, simplify=F), rev)}
if (side %in% c("r", "l")) out <- t(out)
out
}cbind vektory různých délek r
> l <- lapply(c(3,2,1,2,3),seq)
> lapply(c("t","l","b","r"), bind.pad, l=l, len=4)
[[1]]
[,1] [,2] [,3] [,4] [,5]
[1,] NA NA NA NA NA
[2,] 1 NA NA NA 1
[3,] 2 1 NA 1 2
[4,] 3 2 1 2 3
[[2]]
[,1] [,2] [,3] [,4]
[1,] NA 1 2 3
[2,] NA NA 1 2
[3,] NA NA NA 1
[4,] NA NA 1 2
[5,] NA 1 2 3
[[3]]
[,1] [,2] [,3] [,4] [,5]
[1,] 1 1 1 1 1
[2,] 2 2 NA 2 2
[3,] 3 NA NA NA 3
[4,] NA NA NA NA NA
[[4]]
[,1] [,2] [,3] [,4]
[1,] 1 2 3 NA
[2,] 1 2 NA NA
[3,] 1 NA NA NA
[4,] 1 2 NA NA
[5,] 1 2 3 NASouvisející stránky
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