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修改2,3,7的代码格式，去除特殊字符

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chenyyx
2017-08-23 22:37:34 +08:00
parent 0e77fb3158
commit bb8b807d07
4 changed files with 26 additions and 26 deletions
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2
src/python/7.RandomForest/randomForest.py
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@@ -99,7 +99,7 @@ def get_split(dataset, n_features):
for row in dataset:
groups = test_split(index, row[index], dataset) # groups=(left, right), row[index] 遍历每一行 index 索引下的特征值作为分类值 value, 找出最优的分类特征和特征值
gini = gini_index(groups, class_values)
# 左右两边的数量越一样，说明数据区分度不高，gini系数越大
# 左右两边的数量越一样，说明数据区分度不高，gini系数越大
if gini < b_score:
b_index, b_value, b_score, b_groups = index, row[index], gini, groups # 最后得到最优的分类特征 b_index,分类特征值 b_value,分类结果 b_groups。b_value 为分错的代价成本
# print b_score