我是机器学习的新手,目前我正在尝试在Python3.4中实现ROC曲线,它适用于朴素的贝叶斯分类器。给出了分类器的实际代码:
from __future__ import division
from collections import defaultdict
from math import log
def train(samples):
classes, freq = defaultdict(lambda:0), defaultdict(lambda:0)
for feats, label in samples:
classes[label] += 1