Update collab-filter.py for adding Euclidean Stuff

collab-filter.py

@@ -37,3 +37,20 @@ data.append(userRatings)
 file.close()
 userFile.close()
 #data is complete at this point
+
+# Euclidean Distance Basic Implementation Using for Loop
+euclidean = []
+rows = len(data)
+users = data[rows-1]
+cols = len(users)
+for x in range(1,rows-1): # does not include (rows-1)
+	lis = data[x]
+	summ = 0
+	for y in range(1,cols):
+		if(float(lis[y]) != -1 and float(users[y]) != -1):
+			summ += (float(users[y]) - float(lis[y])) ** 2
+	summ = summ ** 0.5
+	euclidean.append((summ,lis[0]))
+
+euclidean.sort()
+print(euclidean)
\ No newline at end of file