从文件中读取数字并规范化

Question

大家好， 我想将我拥有的数据加载到一个文件中，如下所示：

21.4,0.266667,0,0.966667,0.166667,0.966667,0.533333,0.1,............... 

现在，我想从文件中加载它并计算归一化。我愿意：

f = open("Input.txt", "r") 
data = [line.strip() for line in f]
print data
norm = [float(i)/sum(data) for i in data]
print norm

但是，我得到了错误：

ValueError: invalid literal for float()

虽然，我在 linux 中直接在 python 2.7 控制台中执行该过程，

a = [21.4,0.266667,0,0.966667,0.166667,0.966667,0.533333,0.1]
norm = [float(i)/sum(a) for i in a]
print norm

这很好用。我不知道我做错了什么。请帮助我，我是编程新手。提前致谢！

Answer 1

您需要先将文件中的字符串转换为浮点数。

data = []
with open('Input.txt') as f:
    for line in f:
        data.extend([float(x) for x in line.split(',')])

norm = [x/sum(data) for x in data]