inst/snippet/access.R

xm <- matrix(1:16, nrow = 4); xm
xm[5]
xm[, 2]                   # this is 1 dimensional (a vector)
xm[, 2, drop = FALSE]     # this is 2 dimensional (still a matrix)
rpruim/fastR2 documentation built on Nov. 11, 2023, 7:32 a.m.