How to convert list of strings to list of float or integers for mean conversion?

Question

please help, i'm using python 3.4 and i'm trying to figure out how to convert a list of string numbers into a list of string int or float so i can get mean of x and y cordinates. mycode.

filH = open('regres.dat', r')
fileL = filH.readlines()
for line in fileL:
i = line.split(",")
tl_list = (I[0],'\t',x[1])
xx_list = (tl_list[0])
yy_list = (tl_list[2])

S = (sum(xx_list)/float(len(y_list))
print(s)

I keep getting the error str to int. I tried .lstrip but is not working, as well as running it through a loop for n. could there be a faster way to strip my list of end ccommas.

Answer 1

似乎您正在尝试对字符串进行数学运算。

S = sum(map(float,xx_list))/len(y_list)