python读取matlab复数/把i转成j

https://www.cnpython.com/qa/466500

https://www.cnblogs.com/focus-z/p/10820718.html

如果您有这样一个字符串：complexStr = "0.015291+0.0075383i"，您可以：

complexFloat = complex(complexStr[:-1] + 'j')

pandas DataFrame的 applymap() 函数可以对DataFrame里的每个值进行处理,然后返回一个新的DataFrame:

import pandas as pd

df = pd.DataFrame({
    'a': [1, 2, 3],
    'b': [10, 20, 30],
    'c': [5, 10, 15]
})
    
def add_one(x):
     return x + 1
        
print df.applymap(add_one)