Fix cdf and univariate affine broadcasting (#219)

* Fix cdf broadcasting

* Implement broadcasting

* Fix affine rules and cdf

* Version bump

* Fix broadcasting

* Update affine.jl

* Update affine.jl

* Update runtests.jl

Author: jeremiahpslewis

Project.toml

@@ -1,7 +1,7 @@
 name = "MeasureTheory"
 uuid = "eadaa1a4-d27c-401d-8699-e962e1bbc33b"
 authors = ["Chad Scherrer <[email protected]> and contributors"]
-version = "0.16.5"
+version = "0.16.6"
 
 [deps]
 Accessors = "7d9f7c33-5ae7-4f3b-8dc6-eff91059b697"

test/runtests.jl

@@ -574,6 +574,10 @@ end
     f = AffineTransform((μ = 3,))
     @test f(inverse(f)(1)) == 1
     @test inverse(f)(f(1)) == 1
+
+    f = AffineTransform((σ = [1 2; 2 1],))
+    @test f(inverse(f)([1 2; 2 1])) == [1 2; 2 1]
+    @test inverse(f)(f([1 2; 2 1])) == [1 2; 2 1]
 end
 
 @testset "Affine" begin
@@ -645,3 +649,8 @@ end
 
     @test logdensityof(d, x) isa Real
 end
+
+@testset "Distributions.jl cdf" begin
+    @test cdf(Normal(0, 1), 0) == 0.5
+    @test cdf.((Normal(0, 1),), [0, 0]) == [0.5, 0.5]
+end