diff --git a/tree.py b/tree.py
new file mode 100644
index 0000000..8deda81
--- /dev/null
+++ b/tree.py
@@ -0,0 +1,52 @@
+from pyFTS import *
+from functools import reduce
+import numpy as np
+
+
+class FLRGTreeNode:
+	
+	def __init__(self,value):
+		self.isRoot = False
+		self.children = []
+		self.value = value
+		
+	def appendChild(self,child):
+		self.children.append(child)
+	
+	def getChildren(self):
+		for child in self.children:
+			yield child
+		
+	def getPaths(self):
+		if len(self.children) > 0:
+			for child in self.children:
+				tmp = [self.value]
+				tmp.extend(child.getPaths())
+				yield tmp
+		else:
+			yield self.value
+			
+	def getStr(self,k):
+		if self.isRoot:
+			tmp = str(self.value)
+		else:
+			tmp = "\\" + ("-" * k) + str(self.value)
+		for child in self.getChildren():
+			tmp = tmp + "\n" + child.getStr(k + 1)
+		return tmp
+		
+	def __str__(self):
+		return self.getStr(0)
+
+class FLRGTree:
+	def __init__(self):
+		self.root = FLRGTreeNode(None)
+
+def flat(dados):
+	for inst in dados:
+		if isinstance(inst, (list, tuple)):
+			x = flat(inst)
+			for k in x:
+				yield k
+		else:
+			yield inst