Encode and decode character and numeric values.
encode(x, ...)
decode(x, ...)
# S3 method for default
encode(x, ...)
# S3 method for d_label
encode(x, ...)
# S3 method for default
decode(x, ...)
# S3 method for d_label
decode(x, ...)
# S3 method for d_label
rep(x, ...)
# S3 method for d_label
[(x, i, ..., drop = TRUE)
# S3 method for d_label
[[(x, i, ..., drop = TRUE)
[d_label|atomic]
Other arguments.
i
drop
d_label
; atomic
To minimise memory usage, most components of pid
, epid
and pane
are integer
objects with labels.
encode()
and decode()
translates these codes and labels as required.
cds <- encode(rep(LETTERS[1:5], 3))
cds
#> [1] 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5
#> attr(,"class")
#> [1] "d_label"
#> attr(,"value")
#> [1] 1 2 3 4 5
#> attr(,"label")
#> [1] "A" "B" "C" "D" "E"
#> attr(,"state")
#> [1] "encoded"
nms <- decode(cds)
nms
#> [1] "A" "B" "C" "D" "E" "A" "B" "C" "D" "E" "A" "B" "C" "D" "E"
#> attr(,"class")
#> [1] "d_label"
#> attr(,"value")
#> [1] 1 2 3 4 5
#> attr(,"label")
#> [1] "A" "B" "C" "D" "E"
#> attr(,"state")
#> [1] "decoded"