Scales a vector by a constant.
Examples
set.seed(4669)
A = big.matrix(3, 2, type="double", init=1, dimnames=list(NULL,
c("alpha", "beta")), shared=FALSE)
dscal(ALPHA=2,Y=A)
#> An object of class "big.matrix"
#> Slot "address":
#> <pointer: 0x151f709d0>
#>
A[,]
#> alpha beta
#> [1,] 2 2
#> [2,] 2 2
#> [3,] 2 2
# The big.matrix file backings will be deleted when garbage collected.
rm(A)
gc()
#> used (Mb) gc trigger (Mb) limit (Mb) max used (Mb)
#> Ncells 1146685 61.3 2286118 122.1 NA 2286118 122.1
#> Vcells 2054227 15.7 8388608 64.0 65536 5285191 40.4