Nan to Num Python [英] Nan to Num Python

问题描述

我有多个用于计算线性回归的数组，但有时它会给我0/0值，这给了我'NaN'.我知道要在存在NaN的数字的情况下转换数组，可以使用 numpy.nan_to_num .但是，如果我要转换单个值不在数组中，而是线性回归

I have multiple array that for those I calculate a linear regression, but sometimes it gives me 0/0 values which gives me a 'NaN'. I know that to convert an array where there are numbers that are NaN you can convert them using numpy.nan_to_num. But what if I want to convert a single value that's not in a array, but a result of a linear regression calculation?

这不是重复的问题(将nan值转换为零)，因为我指的是不在数组中的项目/结果

It's not a duplicate question (convert nan value to zero ) since I'm referring to a item/result that is not in a array

推荐答案

numpy.nan_to_num在标量上工作正常.

>>> import numpy as np
>>> np.nan_to_num(float('inf'))
1.7976931348623157e+308
>>> np.nan_to_num(float('nan'))
0.0
>>> np.nan_to_num(float('-inf'))
-1.7976931348623157e+308

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