StatRed ass1: Added some comments.

statred/ass1/q23_iris.py

@@ -7,7 +7,7 @@ cnvt_dict = {'Iris-setosa': 0.0, 'Iris-versicolor': 1.0, 'Iris-virginica': 2.0}
 data = loadtxt('iris.data', delimiter=',', dtype=float, \
         converters={4: lambda s: not s in cnvt_dict and -1.0 or cnvt_dict[s]})
 
-# Transform the data set into
+# Transform the data set into plottable graph data
 graph_data = [[[] for i in range(3)] for j in range(16)]
 for i in range(4):
     for j in range(4):
@@ -15,10 +15,10 @@ for i in range(4):
             for d in data:
                 graph_data[i + j*4][int(d[4])].append((d[i], d[j]));
 
+# Different colors for different data types (map these colors to cnvt_dict).
 colors = ['r', 'g', 'b']
 figure(16)
 clf()
-
 for i in range(4):
     for j in range(4):
         if i != j: