From d69081d8c7306c728dad50cbea1a468c27787775 Mon Sep 17 00:00:00 2001
From: Seth Axen <seth@sethaxen.com>
Date: Mon, 30 Jan 2023 20:41:56 +0100
Subject: [PATCH 1/4] Throw error if transform not supported

---
 src/bijectors/ordered.jl | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/bijectors/ordered.jl b/src/bijectors/ordered.jl
index d1bfd8f0..afb0f829 100644
--- a/src/bijectors/ordered.jl
+++ b/src/bijectors/ordered.jl
@@ -14,7 +14,12 @@ struct OrderedBijector <: Bijector{1} end
 
 Return a `Distribution` whose support are ordered vectors, i.e., vectors with increasingly ordered elements.
 """
-ordered(d::ContinuousMultivariateDistribution) = Bijectors.transformed(d, OrderedBijector())
+function ordered(d::ContinuousMultivariateDistribution)
+    if !isa(bijector(d), Identity)
+        throw(ArgumentError("ordered transform is currently only supported for unconstrained distributions."))
+    end
+    return Bijectors.transformed(d, OrderedBijector())
+end
 
 (b::OrderedBijector)(y::AbstractVecOrMat) = _transform_ordered(y)
 

From bae11132292ea9c49cb6c6bbe68ba9b04172b46c Mon Sep 17 00:00:00 2001
From: Seth Axen <seth@sethaxen.com>
Date: Mon, 30 Jan 2023 20:42:08 +0100
Subject: [PATCH 2/4] Document requirements of ordered

---
 src/bijectors/ordered.jl | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/bijectors/ordered.jl b/src/bijectors/ordered.jl
index afb0f829..6e66bf71 100644
--- a/src/bijectors/ordered.jl
+++ b/src/bijectors/ordered.jl
@@ -13,6 +13,8 @@ struct OrderedBijector <: Bijector{1} end
     ordered(d::Distribution)
 
 Return a `Distribution` whose support are ordered vectors, i.e., vectors with increasingly ordered elements.
+
+This transformation is currently only supported for otherwise unconstrained distributions.
 """
 function ordered(d::ContinuousMultivariateDistribution)
     if !isa(bijector(d), Identity)

From e606dec12407491766dc90775e5e08bec9a96fcb Mon Sep 17 00:00:00 2001
From: Seth Axen <seth@sethaxen.com>
Date: Mon, 30 Jan 2023 20:42:14 +0100
Subject: [PATCH 3/4] Add ordered test

---
 test/bijectors/ordered.jl | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/test/bijectors/ordered.jl b/test/bijectors/ordered.jl
index 1bf53931..2de88f03 100644
--- a/test/bijectors/ordered.jl
+++ b/test/bijectors/ordered.jl
@@ -1,4 +1,5 @@
-import Bijectors: OrderedBijector
+import Bijectors: OrderedBijector, ordered
+using LinearAlgebra
 
 @testset "OrderedBijector" begin
     b = OrderedBijector()
@@ -20,3 +21,22 @@ import Bijectors: OrderedBijector
     @test sort(ys[:, 1]) == ys[:, 1]
     @test sort(ys[:, 2]) == ys[:, 2]
 end
+
+@testset "ordered" begin
+    d = MvNormal(1:5, Diagonal(6:10))
+    d_ordered = ordered(d)
+    @test d_ordered isa Bijectors.TransformedDistribution
+    @test d_ordered.dist === d
+    @test d_ordered.transform isa OrderedBijector
+    y = randn(5)
+    x = inv(bijector(d_ordered))(y)
+    @test issorted(x)
+
+    d = Product(fill(Normal(), 5))
+    # currently errors because `bijector(Product(fill(Normal(), 5)))` is not an `Identity`
+    @test_broken ordered(d) isa Bijectors.TransformedDistribution
+
+    # non-Identity bijector is not supported
+    d = Dirichlet(ones(5))
+    @test_throws ArgumentError ordered(d)
+end

From 354dae0ce583261e3fce7598b972cabffc4772de Mon Sep 17 00:00:00 2001
From: Hong Ge <3279477+yebai@users.noreply.github.com>
Date: Thu, 2 Feb 2023 18:18:41 +0000
Subject: [PATCH 4/4] Update Project.toml

---
 Project.toml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Project.toml b/Project.toml
index 938d4735..0612e18d 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,6 +1,6 @@
 name = "Bijectors"
 uuid = "76274a88-744f-5084-9051-94815aaf08c4"
-version = "0.10.6"
+version = "0.11.1"
 
 [deps]
 ArgCheck = "dce04be8-c92d-5529-be00-80e4d2c0e197"