comments added

--HG-- branch : sandbox
2009-07-15 20:56:27 +00:00
parent 5b743f08b6
commit 1e172971e3
1 changed files with 7 additions and 3 deletions
--- a/mpl/bup1.py
+++ b/mpl/bup1.py
@@ -1,8 +1,12 @@
-# Copyright (c) 2008 Andreas Balogh
+# Copyright (c) 2009 Andreas Balogh
 # See LICENSE for details.

 '''
-online bottom up 
+Online bottom-up
+
+1. segment tick data with a sliding window alogrithm
+2. recognise low/high points by comparing slope information
+3. recognise trend by observing low/high point difference 
 '''

 # system imports
@@ -250,7 +254,7 @@ class DelayedAcp:


 class TopDownLoHi:
-    '''Time series high & low detector.'''
+    '''Douglas-Peucker algorithm.'''
    def __init__(self, bias):
        assert(bias > 0) 
        self.bias = bias