Hello, I am a beginner learning Python and programming in general. Please forgive me if my approach is not the most efficient.
Let's say I have a list:
Coordinates = [[1, 1], [2, 1], [1, 2], [1, 1]]
And now I want to create a new list called xCoordinates:
xCoordinates = [1, 2, 1, 1]
Could someone guide me on how to achieve this? I am looking for a method that can handle lists of varying lengths as the project I am working on involves dynamic position arrays.
Thank you!
If you're looking for a straightforward solution, consider using a list comprehension:
xValues = [item[0] for item in Values]
To rearrange the list, you can use the transpose function along with zip. Then, to extract the first row, you can simply use basic indexing:
>>> Coords = [[1, 1], [2, 1], [1, 2], [1, 1]]
>>> zip(*Coords)
[(1, 2, 1, 1), (1, 1, 2, 1)]
>>> zip(*Coords)[0]
(1, 2, 1, 1)
>>> list(zip(*Coords)[0])
[1, 2, 1, 1]
It's worth noting that this approach may require more memory compared to using a list comprehension.
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