kmeans Update 1.0

- Exported some functions in seperate libaries
- Finished the algorithm, added calcCusters function
- Optimized code

src/algorithms/dmtest.py

@@ -0,0 +1,28 @@
+# For random generation of numbers import randint
+from random import randint, shuffle
+
+# Simple generator for test data (100 plzs, 20-30-50 biased), returns 1D array of plzs 
+def testgenerator():
+	dataArray = []
+	for i in range(0,100):
+		if i <= 40:
+			plz = generatePLZ("05")
+		elif i > 40 and i < 80:
+			plz = generatePLZ("50")
+		else:
+			plz = generatePLZ("")
+		dataArray.append(plz)
+	shuffle(dataArray)
+	return dataArray
+
+# Generates a PLZ from a certain start point
+def generatePLZ(start):
+	if len(start) == 0:
+		plz = ""
+		for j in range(1,6):
+			plz = plz + str(randint(0,9))
+	else:
+		plz = start
+		for j in range(1,4):
+			plz = plz + str(randint(0,9))
+	return plz