[英]Cannot convert list of strings to list of floats in python using float()
I am trying to change the elements of a list of strings to floats using the method defined in this thread .我正在尝试使用此线程中定义的方法将字符串列表的元素更改为浮点数。 I write我写的
with open('posx_mean_no_acoplo_tf_multiple.txt', 'r') as fmediaXoriginal:
contentmediaXoriginal = fmediaXoriginal.readlines()
contentmediaXoriginal = [x.strip() for x in contentmediaXoriginal]
[float(i) for i in contentmediaXoriginal]
As specified in the other thread.如另一个线程中所述。 However, if I write print(type(contentmediaXoriginal[2]))
, then, the output is <class 'str'>
.但是,如果我写print(type(contentmediaXoriginal[2]))
,那么 output 是<class 'str'>
。 As far as I can see, I am following the accepted answer to the letter.据我所知,我正在遵循对这封信的接受答复。 Can someone tell me why my code is not converting the elements of contentmediaXoriginal to floats?有人能告诉我为什么我的代码没有将 contentmediaXoriginal 的元素转换为浮点数吗?
The first 5 lines of posx_mean_no_acoplo_tf_multiple.txt are: posx_mean_no_acoplo_tf_multiple.txt 的前 5 行是:
2.25
2.2695317544146922
2.329339980428795
2.4250625977456477
2.5550797011698574
You are nearly there.你快到了。 You just have not assigned the output.您只是没有分配 output。 Try this尝试这个
with open('posx_mean_no_acoplo_tf_multiple.txt', 'r') as fmediaXoriginal:
contentmediaXoriginal = fmediaXoriginal.readlines()
contentmediaXoriginal = [float(x.strip()) for x in contentmediaXoriginal]
Note: Please fix indentation as you require it.注意:请根据需要修复缩进。
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