Given a network and set of IDs, finds paths between all identified flowpath outlets. This algorithm finds members between outlets regardless of flow direction.
get_path_members(outlets, network, cores = 1, status = FALSE)vector of IDs from data.frame
data.frame with ID, toID, and lengthkm attributes.
integer number of cores to use for parallel computation.
logical print status and progress bars?
list of lists containing flowpath identifiers along path that connect outlets.
source(system.file("extdata", "walker_data.R", package = "nhdplusTools"))
fline <- walker_flowline
outlets <- c(5329303, 5329357, 5329317, 5329365, 5329435, 5329817)
# Add toCOMID
fline <- nhdplusTools::get_tocomid(fline, add = TRUE)
fl <- dplyr::select(fline, ID = comid, toID = tocomid, lengthkm)
get_path_members(outlets, fl)
#> Warning: get_paths* is deprecated in favor of get_paths in the hydroloom package.
#> id_1 id_2 path
#> 1 5329303 5329357 7, 6, 5, 4, 3, 2, 1
#> 2 5329303 5329317 3, 2, 1
#> 3 5329303 5329365 8, 7, 6, 5, 4, 3, 2, 1
#> 4 5329303 5329435 15, 14, 13, 12, 11, 60, 62, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1
#> 5 5329303 5329817 18, 17, 5, 4, 3, 2, 1
#> 6 5329357 5329317 7, 6, 5, 4
#> 7 5329357 5329365 8
#> 8 5329357 5329435 15, 14, 13, 12, 11, 60, 62, 10, 9, 8
#> 9 5329357 5329817 7, 6, 18, 17
#> 10 5329317 5329365 8, 7, 6, 5, 4
#> 11 5329317 5329435 15, 14, 13, 12, 11, 60, 62, 10, 9, 8, 7, 6, 5, 4
#> 12 5329317 5329817 18, 17, 5, 4
#> 13 5329365 5329435 15, 14, 13, 12, 11, 60, 62, 10, 9
#> 14 5329365 5329817 8, 7, 6, 18, 17
#> 15 5329435 5329817 15, 14, 13, 12, 11, 60, 62, 10, 9, 8, 7, 6, 18, 17