add 'pairwise' param in flow aggregation for #229

DESCRIPTION

@@ -1,6 +1,6 @@
 Package: dodgr
 Title: Distances on Directed Graphs
-Version: 0.4.0.004
+Version: 0.4.0.005
 Authors@R: c(
     person("Mark", "Padgham", , "mark.padgham@email.com", role = c("aut", "cre")),
     person("Andreas", "Petutschnig", role = "aut"),

R/flows.R

@@ -11,6 +11,11 @@
 #' calculated (see Details)
 #' @param flows Matrix of flows with `nrow(flows)==length(from)` and
 #' `ncol(flows)==length(to)`.
+#' @param pairwise If `TRUE`, aggregate flows only only paths connecting the
+#' ordered pairs of `from` and `to`. In this case, both `from` and `to` must be
+#' of the same length, and `flows` must be either a vector of the same length,
+#' or a matrix with only one column and same number of rows. `flows` then
+#' quantifies the flows between each pair of `from` and `to` points.
 #' @param contract If `TRUE` (default), calculate flows on contracted graph
 #' before mapping them back on to the original full graph (recommended as this
 #' will generally be much faster). `FALSE` should only be used if the `graph`
@@ -139,6 +144,7 @@ dodgr_flows_aggregate <- function (graph,
                                    from,
                                    to,
                                    flows,
+                                   pairwise = FALSE,
                                    contract = TRUE,
                                    heap = "BHeap",
                                    tol = 1e-12,

codemeta.json

@@ -11,7 +11,7 @@
   "codeRepository": "https://github.com/UrbanAnalyst/dodgr",
   "issueTracker": "https://github.com/UrbanAnalyst/dodgr/issues",
   "license": "https://spdx.org/licenses/GPL-3.0",
-  "version": "0.4.0.004",
+  "version": "0.4.0.005",
   "programmingLanguage": {
     "@type": "ComputerLanguage",
     "name": "R",