diff --git a/Probnet.cabal b/Probnet.cabal
--- a/Probnet.cabal
+++ b/Probnet.cabal
@@ -2,7 +2,7 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                Probnet
-version:             0.1.0.1
+version:             0.1.0.2
 synopsis:            Geometric Extrapolation of Integer Sequences with error prediction 
 description:	     Solves thousands of oeis.org math functions just in one, Probnet . A new way to calculate and predict results from the data source without knowing the function who composes a data set. Aplications in math, AI, infromation compresion when the data source follows math patterns. Describe the 100 % accuracy functions in 3 fraction parameters and 1 parameter for the index.
 homepage:            https://github.com/pedroelbanquero/geometric-extrapolation
diff --git a/Probnet.hs b/Probnet.hs
--- a/Probnet.hs
+++ b/Probnet.hs
@@ -70,6 +70,55 @@
    err   = zipWith subtract pred dat -- differences between elements and its predictions
    pred  = fmap predict1 $ inits dat -- 2 first inits have 0 and 1 elements, will be dropped
 
+
+
+-- | Encode data sequence
+-- convert data sequence to f = (index,frac1,frac2,frac3,longitude)
+-- TODO convert data secuence to a function / symbol dictionary and replace sequence patterns for the symbol
+-- example parse 1,2,3,4,5,8,16.... / output -> (.,30,1,1,1),(,,10,2,4,8) .....,,
+-- the idea is convert different values in the same symbol, in decode moment replace the function symbol by the element in the index of the data sequence.
+--
+encode dat = (l,f2-f1,f3-f2,f4-f3)
+   where
+   l = length dat
+   f1 = dat !! 0
+   f2 = dat !! 1
+   f3 = dat !! 2
+   f4 = dat !! 3
+   -- add split patterns function to the dictionary
+   -- rewrite sequence to new function symbols
+   -- rewrite base for encoding
+   -- output dictionary + rewrited symbols sequence
+   -- return imposible to encode if no improve in the encodening comparing bit size are detected
+
+
+-- | Encode function for files + lzma
+--
+
+
+
+-- | Decode data sequence
+-- convert encoded probnet function parameters to data sequence
+-- TODO convert encoded data sequence to real data converting each symbol by his element in the function data secuence in the dictionary.
+decode encoded = probnet (i-(length encoded-1)) [fromIntegral f1,fromIntegral f2,fromIntegral f3,fromIntegral f4]
+	where
+	i = encoded!!0
+	f1 = encoded!!1
+	f2 = encoded!!2
+	f3 = encoded!!3
+	f4 = encoded!!4
+	-- get dictionary function
+	-- replace funcion data secuence by function elements to generate the real data sequence
+	-- output results
+	-- return no function dictionary was found , or no functionon decoding for this sequence
+
+
+
+
+-- | Decode file to a file
+-- 
+
+
 -- | Property of Cobalt Technologies Panamá
 -- | Authors : Vicent Nos Ripolles (Main Author)
 -- | Enrique Santos (Refactor Code)
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -30,7 +30,7 @@
 - uncertain prediction
 - data modeling
 - risk modeling
-
+- data encoder decoder
 
 ## A geometric way of prediction