From 95a1fe1a73ab4bd005c7117790f2ee55a06d5cd2 Mon Sep 17 00:00:00 2001
From: William Cohen <wcohen@cs.cmu.edu>
Date: Thu, 19 Oct 2017 17:19:17 -0400
Subject: [PATCH] added pagerank example; phirl-improved

---
 tutorial/Makefile          | 5 ++++-
 tutorial/phirl-improved.py | 2 +-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/tutorial/Makefile b/tutorial/Makefile
index 5c292a4..10f3a62 100644
--- a/tutorial/Makefile
+++ b/tutorial/Makefile
@@ -6,6 +6,7 @@ clean:
 	rm -rf gpig_views
 	rm -f total.gp
 	rm -f *.pyc
+	rm -f tmp-pr-graph.txt
 
 tar: update
 	echo created on `date` > marker.txt
@@ -84,4 +85,6 @@ check-phirl: run-phirl
 	sort -gr gpig_views/look.gp > phirl-actual-output.txt
 	diff phirl-actual-output.txt phirl-expected-output.txt
 
-
+run-pagerank:
+	python pagerank.py
+	head tmp-pr-graph.txt 
diff --git a/tutorial/phirl-improved.py b/tutorial/phirl-improved.py
index 4b09bca..3631128 100644
--- a/tutorial/phirl-improved.py
+++ b/tutorial/phirl-improved.py
@@ -91,7 +91,7 @@ class Phirl(Planner):
             by=lambda((rel1,doc1,term,weight1),(rel2,doc2,term_,weight2)): \
                        (doc1,doc2,weight1*weight2)) \
         | Group(by=lambda(doc1,doc2,p):(doc1,doc2), \
-                retaining=lambda accum,(doc1,doc2,p):p, \
+                retaining=lambda (doc1,doc2,p):p, \
                 reducingTo=ReduceToSum()) \
         | ReplaceEach(by=lambda((doc1,doc2),sim):(doc1,doc2,sim))