Sync (expand or compress) a vector

Usage

sync_vector(
  x,
  newLength,
  sep = " ",
  fill = TRUE,
  compressFun = NULL,
  expandFun = NULL,
  compressFunPart = NULL,
  silent = rock::opts$get("silent")
)

Arguments

x: The vector
newLength: The new length
sep: When not specifying compressFun and compressFunPart, the paste function is used to combine elements, and in that case, sep is passed to paste as separator.
fill: When expanding streams, whether to duplicate elements to fill the resulting vector. Ignored if fillFun is specified.
compressFun: If specified, when compressing streams, instead of pasting elements together using separator sep, the vectors are passed to function compressFun, which must accept a vector (to compress) and a single integer (with the desired resulting length of the vector).
expandFun: If specified, when expanding streams, instead of potentially filling the new larger vector with elements (if fill is TRUE), the vectors are passed to function expandFun, which must accept a vector (to compress) and a single integer (with the desired resulting length of the vector).
compressFunPart: A function to apply to the segments that are automatically created; this can be passed instead of compressFun.
silent: Whether to be silent or chatty.

Value

The synced vector

Examples

rock::sync_vector(letters[1:10], 15);
#>  [1] "a" "b" "b" "c" "d" "d" "e" "f" "f" "g" "h" "h" "i" "j" "j"
rock::sync_vector(letters[1:10], 5);
#> [1] "a b" "c d" "e f" "g h" "i j"