DEPRECATED Convert "to" index ids to "from" index ids

make_fromids is deprecated and will be removed in a future release. Use make_index_ids with mode = "from" instead.

Usage

make_fromids(index_ids, return_list = FALSE, upmain = NULL)

Arguments

index_ids

data.frame as returned by make_index_ids

return_list

logical if TRUE, the returned list will include a "froms_list" element containing all from ids in a list form.

upmain

data.frame containing id and upmain columns. upmain should be a logical value indicating if the id is the upmain connection from its downstream neighbors.

Value

list containing a "froms" matrix, "lengths" vector, and optionally "froms_list" elements.