Added a basic sum/division recipe using sack CTR
Project: http://git-wip-us.apache.org/repos/asf/tinkerpop/repo Commit: http://git-wip-us.apache.org/repos/asf/tinkerpop/commit/736cb261 Tree: http://git-wip-us.apache.org/repos/asf/tinkerpop/tree/736cb261 Diff: http://git-wip-us.apache.org/repos/asf/tinkerpop/diff/736cb261 Branch: refs/heads/TINKERPOP-1730 Commit: 736cb261c493acc7831c761a8bc1c5351d1efba0 Parents: e9b364a Author: Stephen Mallette <sp...@genoprime.com> Authored: Wed Sep 13 11:16:16 2017 -0400 Committer: Stephen Mallette <sp...@genoprime.com> Committed: Wed Sep 13 11:16:16 2017 -0400 ---------------------------------------------------------------------- docs/src/recipes/appendix.asciidoc | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/tinkerpop/blob/736cb261/docs/src/recipes/appendix.asciidoc ---------------------------------------------------------------------- diff --git a/docs/src/recipes/appendix.asciidoc b/docs/src/recipes/appendix.asciidoc index 22ce1a7..a65b8f8 100644 --- a/docs/src/recipes/appendix.asciidoc +++ b/docs/src/recipes/appendix.asciidoc @@ -174,6 +174,31 @@ g.withSack(0).V().values("age").sack(sum).sack(sum).sack() // multiply by 2 (sim g.withSack(0).V().values("age").sack(sum).sack(mult).by(constant(2)).sack() // multiply by 2 (generally useful for multiplications by n) ---- +_Method for doing a sum with division._ + +[gremlin-groovy] +---- +g.addV().property(id, "a").as("a"). + addV().property(id, "b").as("b"). + addE("link").from("a").to("b"). + addE("link").from("b").to("a"). + addE("link").from("b").to("a").iterate() +g.withSack(0d). + V("a").as("a"). + V("b").as("b"). + project("ab", "ba"). + by(inE("link").where(outV().as("a")).count()). + by(outE("link").where(inV().as("a")).count()). + sack(sum).by(select("ab")). + sack(div).by(select("ba")). + project("a", "b", "#(a,b)", "#(b,a)", "#(a,b) / #(b,a)"). + by(select("a")). + by(select("b")). + by(select("ab")). + by(select("ba")). + by(sack()) +---- + [[appendix-g]] _Dropping a vertex, as well as the vertices related to that dropped vertex that are connected by a "knows" edge in the "modern" graph_
