From e4c15d30f9fe4fcd1a6e45041dcaf19346481312 Mon Sep 17 00:00:00 2001
From: pytlab <shaozhengjiang@gmail.com>
Date: Tue, 12 Dec 2017 22:06:52 +0800
Subject: [PATCH] Fix example 2.

---
 examples/ex02/ex02.py | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/examples/ex02/ex02.py b/examples/ex02/ex02.py
index 95e4562..b27038a 100644
--- a/examples/ex02/ex02.py
+++ b/examples/ex02/ex02.py
@@ -8,7 +8,7 @@
 from math import sin, cos, pi
 
 from gaft import GAEngine
-from gaft.components import GAIndividual
+from gaft.components import BinaryIndividual
 from gaft.components import GAPopulation
 from gaft.operators import TournamentSelection
 from gaft.operators import UniformCrossover
@@ -19,9 +19,7 @@
 from gaft.analysis.console_output import ConsoleOutput
 
 # Define population.
-indv_template = GAIndividual(ranges=[(-2, 2), (-2, 2)],
-                             encoding='binary',
-                             eps=0.001)
+indv_template = BinaryIndividual(ranges=[(-2, 2), (-2, 2)], eps=0.001)
 population = GAPopulation(indv_template=indv_template, size=50).init()
 
 # Create genetic operators.
@@ -39,7 +37,7 @@
 # Define fitness function.
 @engine.fitness_register
 def fitness(indv):
-    x, y = indv.variants
+    x, y = indv.solution
     return y*sin(2*pi*x) + x*cos(2*pi*y)
 
 if '__main__' == __name__: