katarin.b...@gmail.com wrote:
> Hi again,
>
> I am trying to subtract the minimum value from all numbers (in one array).
> I am using this:
>
>
> (array[:,1] -= np.min(array[:,1]) but I alsways have syntaxerror:invalid
> syntax. Do I need some import for this -=? or its something else? THanks!
The name np is probably a reference to numpy, so you need an import for it:
import numpy as np
However, when you forget the above import you will get a NameError like
>>> np
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'np' is not defined
whereas a SyntaxError indicates that your code is not valid Python. The
problem are the surrounding parentheses. A simple example:
>>> x = 42
Wrong:
>>> (x -= 1)
File "<stdin>", line 1
(x -= 1)
^
SyntaxError: invalid syntax
Correct:
>>> x -= 1
>>> x
41
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