Expand a vector or data frame

syncing_df_expand(
  x,
  newLength,
  fill = TRUE,
  expandFun = NULL,
  silent = rock::opts$get("silent")
)

syncing_vector_expand(
  x,
  newLength,
  fill = TRUE,
  expandFun = NULL,
  silent = rock::opts$get("silent")
)

Arguments

x: The vector or data frame
newLength: The new length (or number of rows for a data frame)
fill: When expanding streams, whether to duplicate elements to fill the resulting vector. Ignored if fillFun is specified.
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).
silent: Whether to be silent or chatty.

Value

The expanded vector

Examples

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