From d25d4bdb1fb5dd63704da1a3d07af4f014422276 Mon Sep 17 00:00:00 2001
From: Emma Smith <evsmithx@gmail.com>
Date: Tue, 31 May 2016 15:57:59 +0100
Subject: [PATCH 1/3] Adding Base.show(io::IO, ch1::Chain) function

---
 src/core/io.jl | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/core/io.jl b/src/core/io.jl
index 323bf60cc..ad0840672 100644
--- a/src/core/io.jl
+++ b/src/core/io.jl
@@ -13,6 +13,16 @@ type Chain
 end
 Chain() = Chain(0, Vector{Sample}())
 
+function Base.show(io::IO, ch1::Chain)
+  # Print chain weight and weighted means of samples in chain
+  if length(ch1.value) == 0
+    print(io, "Empty Chain, weight $(ch1.weight)")
+  else
+    chain_mean = [i => mean(ch1, i, x -> x) for i in keys(ch1.value[1].value)]
+    print(io, "Chain, weight $(ch1.weight) and means $(chain_mean)")
+  end
+end
+
 function Base.getindex(c::Chain, v::Symbol)
   # This strange implementation is mostly to keep backward compatability.
   #  Needs some refactoring a better format for storing results is available.
@@ -54,4 +64,3 @@ end
 # tests
 # tr = Turing.sampler.particles[1]
 # tr = Chain(Turing.sampler.particles)
-

From 48617212c6cb3aecb26d81ba8018e4dabcc57c6d Mon Sep 17 00:00:00 2001
From: Hong Ge <hg344@cam.ac.uk>
Date: Fri, 3 Jun 2016 15:09:13 +0100
Subject: [PATCH 2/3] Update io.jl

---
 src/core/io.jl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/io.jl b/src/core/io.jl
index ad0840672..0237d0442 100644
--- a/src/core/io.jl
+++ b/src/core/io.jl
@@ -19,7 +19,7 @@ function Base.show(io::IO, ch1::Chain)
     print(io, "Empty Chain, weight $(ch1.weight)")
   else
     chain_mean = [i => mean(ch1, i, x -> x) for i in keys(ch1.value[1].value)]
-    print(io, "Chain, weight $(ch1.weight) and means $(chain_mean)")
+    print(io, "Chain, model edvidence (log)  $(ch1.weight) and means $(chain_mean)")
   end
 end
 

From e7a6e09d8c9b89655d6d5c8ab9764d055483b03e Mon Sep 17 00:00:00 2001
From: Hong Ge <hg344@cam.ac.uk>
Date: Fri, 3 Jun 2016 15:10:23 +0100
Subject: [PATCH 3/3] Fix typo.

---
 src/core/io.jl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/io.jl b/src/core/io.jl
index 0237d0442..edd64a55b 100644
--- a/src/core/io.jl
+++ b/src/core/io.jl
@@ -19,7 +19,7 @@ function Base.show(io::IO, ch1::Chain)
     print(io, "Empty Chain, weight $(ch1.weight)")
   else
     chain_mean = [i => mean(ch1, i, x -> x) for i in keys(ch1.value[1].value)]
-    print(io, "Chain, model edvidence (log)  $(ch1.weight) and means $(chain_mean)")
+    print(io, "Chain, model evidence (log)  $(ch1.weight) and means $(chain_mean)")
   end
 end