diff --git a/stats.py b/stats.py
index 51ef202..8dd99d8 100644
--- a/stats.py
+++ b/stats.py
@@ -580,16 +580,37 @@ def stu_record_to_vector(line):
     return id,vector
 
 
-def grades_to_vectors():
+def grades_to_vectors(verbose=1):
     grades = codecs.open('cache/courses_student_scores.csv','r','utf-8').readlines()
     for L in grades:
         id, vector = stu_record_to_vector(L)
-        print(id, vector)
+        if verbose: print(id, vector)
+
+def course_main_record():
+    return json.loads(codecs.open('cache/courses/course_main_record.json','r','utf-8').read())
+
+def courses_to_vector(course_list):
+    template = course_main_record()
+    lookup = {}
+    for i,c in enumerate(template):
+        lookup[c] = i
+    vector = [0 for x in range(len(template))]
+    for C in course_list:
+        goodname = shell2course(C[0])
+        if goodname:
+            vector[lookup[goodname]] = 1     #  C[1]   # score
+    return vector
+
+def course_vector_to_names(vector):
+    template = course_main_record()
+    names = []
+    for i,v in enumerate(vector):
+        if v:
+            names.append(template[i])
+    return names
 
 
-def all_course_names():
-
-    
+def all_course_names(): 
     complete_list = {}
     missing_names = {}
     with open(student_courses_scores,'r') as input_f: