Question

我对python完全不熟悉，并且在处理这些问题时遇到了一些麻烦。我一直在下面的代码中得到与第14行及以后相对应的上述错误消息（以p =开头）。任何帮助都感激不尽。谢谢！

file = open('random.txt','r')
lines = file.readlines()
file.close()

import pandas

colnames = ['x', 'y', 'e']
data = pandas.read_sv('random.txt', names=colnames)

x = data.x.tolist()
y = data.x.tolist()
e = data.x.tolist()

p = [sum(1/int(a**2) for a in e)]
q = [sum(b/int(a**2) for b, a in zip(x, e))]
r = [sum(c/int(a**2) for c, a in zip(y, e))]
s = [sum(b**2/int(a**2) for b, a in zip(x, e))]
t = [sum(b*c/int(a**2) for c, b, a in zip(y, x, e))]
delta = p*s - q**2

a = (r*s - q*t)/delta
b = (p*t - q*r)/delta

import math
Ua = math.sqrt(s/delta)
Ub = math.sqrt(p/delta)

print('a', 'b', 'Ua', 'Ub')

Answer 1

似乎data.x.tolist()返回字符串列表。在进行数学运算之前，您必须将每个项目转换为float或int：

x = [float(a) for a in data.x.tolist()]
y = [float(a) for a in data.x.tolist()]
e = [float(a) for a in data.x.tolist()]

希望它有所帮助。

TypeError：**或pow（）的不支持的操作数类型：'str'和'int'

1 个答案: